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R

Rajmohan 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What are the properties of determinant?

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Shaun 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What do you mean by minor and cofactor of determinant?

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Praseem 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What do you mean by skew matrix?

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M

Momin 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What are the properties of adjoint of matrices?

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A

Arvind 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

Define inverse of matrix?

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R

Rajinder 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What do you mean by elementary transformation of matrix?

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Ramya 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

Define non - homogeneous linear equation?

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Neha 09 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Determinants

What is the general form of characteristic matrix of A?

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C

Chandra 04 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Complex Numbers

If [cube of (1 - i / 1 - i)] - [cube of (1 - i / 1 + i)] = x + iy, then the value of (x, y)?

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Sarvajeet Kumar replied | 3 days ago

(1,-1).

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N

Neha 04 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Complex Numbers

If [square of (1 + i)] / 2 - i = x + iy, then find the value of x + y?

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Sarvajeet Kumar replied | 3 days ago

0.

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G

Granth 04 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Complex Numbers

What is the value of [square root of (-25)] * [square root of (-9)]?

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Tapas replied | 6 days ago

See the attachment:

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Sarvajeet Kumar replied | 3 days ago

-15.

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R

Rajini Sucharita 04 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Complex Numbers

2 is a real number or imaginary number with respect to complex number?

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Sarvajeet Kumar replied | 3 days ago

A real number.

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A

Abhinav 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutation and Combinations

Find out the number of ways in which 6 rings of different types can be worn in 3 fingers?

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Anil replied | 5 days ago

Each ring has a choice of 3 fingers, so no of ways =3^6. There are no restrictions.

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Sanjeev replied | 4 days ago

6C3*3! = 60.

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S

Sriram 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Permutation and Combinations

Solve: (9) P (3)?

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Sarvajeet Kumar replied | 3 days ago

504.

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D

Disha 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Find the four arithmetic means between 16 and 91?

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Tapas replied | 29 Nov

Here, the arithmetic means are p, q, r, and s.
So, 16, p, q, r, s, 91, ..... are in A. P. in which t1 = 16, and t6 = 91.
Solving , we can get, a = 16, d = 15.
so, p = 16 + 15 = 31, q = 31+15 = 46, r = 46 + 15 = 61, s = 61 + 15 = 76.
So, the arithmetic means are: 31, 46, 61, 76.

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Sarvajeet Kumar replied | 3 days ago

31, 46, 61, 76.

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M

Madhu 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Find the next four terms of arithmetic sequence: 12, 16, 20,....?

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Tapas replied | 29 Nov

24, 28, 32, 36.

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Sarvajeet Kumar replied | 3 days ago

24, 28, 32, 36.

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S

Sensoph 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Find the 14th term of the sequence a1 = 3, d = 7?

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Tapas replied | 29 Nov

For an arithmetic sequence: tn = a + (n-1)d = 3 + (14-1)7 = 3 + 13x7 = 94.

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Sarvajeet Kumar replied | 3 days ago

94.

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P

Probodh 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Which term is indicate by the number 20 in the arithmetic sequence: 8, 11, 14, 17, 20,...?

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Tapas replied | 29 Nov

5th term.

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Sarvajeet Kumar replied | 3 days ago

5th term.

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S

Sanjay 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

What is the formula for finding the sum of nth term?

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Sarvajeet Kumar replied | 3 days ago

Sn=(n/2)(2a+(n-1)d).

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N

Nabodit 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Find the sum of series: 18 + 22 + 26 + 30 +..... + 50?

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Sarvajeet Kumar replied | 3 days ago

306.

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V

Vishwa Nath 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

What is the formula for arithmetic mean in sequence and series?

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Sarvajeet Kumar replied | 3 days ago

a, b, c are in A. P.
b=(a+c)/2.

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R

Ravikumar 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Find the 8th term of a geometric sequence for which a = -3 and r = -2?

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Richa replied | 19 Nov

384

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Sarvajeet Kumar replied | 3 days ago

384.

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J

Joseph 05 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Sequences and Series

Find the next two terms of each geometric sequence: 20, 30, 45, ....?

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Tapas replied | 29 Nov

Here, a = 20 and r = 30/20 = 45/30 = 3/2 = 1.5.
So, next two terms are, 45 x 1.5 = 67.5 and 67.5 x 1.5 = 101.25.

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Sarvajeet Kumar replied | 3 days ago

67.5 and 101.25.

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S

Saravanan 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Vector Algebra

Define all the type of vectors?

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U

User 08 Nov in  Class XI-XII Tuition (PUC), Mathematics(Class XI-XII Tuition (PUC)), Vector Algebra

What is meant by unit vector?

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