Question

12
a) If sin =
and 'O’is acute, find cos 0 and hence find tano.
8.
13​

Answer 1

Answer:

12

a) If sin =

and 'O’is acute, find cos 0 and hence find tano.

8.

13

Answer 2

Answer:

correct question

if sin theta = cos (theta -45 )theta &(theta - 45) are acute angle find the value of theta?

Answer

Sin (theta) = cos (theta -45)

so, Cos (90-theta) = cos (theta -45)       [Cos(90-A) = SinA]

 Hence, 90 - theta = theta - 45

           so, theta = 135/2 = 67.5°

hope this helps you