Question

solve this in notebook pls​

Answer 1

Step-by-step explanation:

to find this type of question firstly break the angle into multiples of 90 + angle(30,45,60)

which values are known by us,then with using table of trigonometry and then use the formulas of allied angles

in the given solution I have used the formulas which are given ----->>>

1. Sin(2×360+A)= SinA
2. Sin(90+A)= CosA
3. Cos(90+A)=-SinA

now the solution is

REFER TO ATTACHMENT