Answer
Step by step text solution for If A = [(cos theta, sin theta),(-sin theta, cos theta)] and B = [(sin theta, - cos theta), (cos theta, sin theta)], evaluate A cos theta + B sin theta. by MATHS experts to help you in doubts & scoring excellent marks in Class 12 exams.
|
PRADEEP PUBLICATION-MATRICES-EXERCISE
- If A = [(1,1),(1,1)], compute A^3
01:06
|
- If A = [(1,2),(-3,0)] and B = [(0,1),(2,3)], compute 2A - B.
01:33
|
- If A = [(cos theta, sin theta),(-sin theta, cos theta)] and B = [(sin ...
02:57
|
- Find the matrix X such that A + 2 B + X = O, where A = [(3,-2),(1,5)] ...
01:02
|
- Write down a scalar matrix of order 2 whose (2,2)th entry is -1.
01:07
|
- Give an example of a 3xx3 lower triangular matrix.
01:23
|
- If A is of order 5 xx 3, what is the number of elements in a row of A...
01:37
|
- If A is of order mxxn, find the number of elements in a column of A.
01:55
|
- If A is of order mxx2 and both A + B and AB are defined, find m.
01:44
|
- Write the diagonal of the matrix A = [(1,0,2),(2,0,3),(3,6,4)].
01:14
|
- Find the number of all possible matrices of order 2xx2 with entries 0,...
02:11
|
- If A = [(2,3),(1,2)], B = [(1,3,2),(4,3,1)], C = [(1),(2)] and D = [(4...
02:20
|
- If A 3xx3 invertible matrix, then show that for any scalar 'k' (non-ze...
02:18
|
- If [2x,3] {:[(1,2),(-3,0)][(x),(8)]= O, find the value of 'x'.
03:58
|
- If P = [(x,0,0),(0,y,0),(0,0,z)]and Q = [(a,0,0),(0,b,0),(0,0,c)], ver...
05:15
|
- Find x,y if x[(2),(1)] + y[(3),(5)] - [(-8),(-11)] = O
01:39
|
- If possible , find the sum of the matrices of A and B, where A = [(sqr...
01:52
|
- If A = [(cos alpha, - sinalpha),(sinalpha, cosalpha)], then for what v...
02:26
|
- If {:((1,2),(3,4)),((3,1),(2,5)),= ((7,11),(k,23)), then write the val...
02:40
|
- If A = [(2,3),(5,-2), write A^-1 in terms of A.
03:35
|