Question

hey guys plz Solve these four question.
if you don't wanna solve all then solve 1 or 2 but plz solve.
I don't know the correct method of solving so...plz solve.
If you solve all four correctly then I will surely mark u as brainliest.​

Answer 1

Answer:

Sin A=-Sin45°=Sin(-45)°

A =-45°

ii) tan(180+45°)=tan45°=tanA

Therefore A=45°

iii)Sin A =cos(270-30)=-Sin(30)°=Sin(-30°)

Therefore A=-30°

Sin^2 45°=1/2=cosA

Therefore A=60°