Find the values of –

cos²45⁰ + sin²30⁰

2

Find the values of –

2sin 30⁰ + cos 0⁰ + 3sin 90⁰

2

Find the values of –

2

Find the values of –

cos 60⁰× cos 30⁰ + sin60⁰ × sin30⁰

3

If sinθ = 4/5 then find cosθ.