In each case given below find the value of x.

In each case, given below, find the value of angle A, where cos (90^(@) - A) . sec 77^(@) = 1

In each case, given below, find the value of angle A, where 0^(@) le A le 90^(@) sin (90^(@) - 3A) . cosec 42^(@) = 1

In each case given below find the the vlues of x and y then angles represented by a, b and c, (i) Given x:y=7:11 (ii) Given x+y=240^(@)

In each case given below find the the vlues of x and y then angles represented by a, b and c, (i) Given x:y=7:11 (ii) Given x+y=240^(@)

In each of the following figures, ABCD is a parallelogram In each case, given above, find the values of x and y

In each of the following figures, ABCD is a parallelogram In each case, given above, find the values of x and y

Find (in each case, given below) the value of x, if : sin 3 x = 2 sin 30^(@) cos 30^(@)

Find (in each case, given below) the value of x, if : sin 2 x = 2 sin 45^(@) cos 45^(@)

Find (in each case, given below) the value of x, if : sin x = sin 60^(@) cos 30^(@) + cos 60^(@) sin 30^(@)

Find (in each case, given below) the value of x, if : cos x = cos 60^(@) cos 30^(@) - sin 60^(@) sin 30^(@)