Question

sin45°cos45°-sin30°=?

Answer 1

Answer:

Step-by-step explanation:

tan3x=sin45∘cos45∘+sin30∘

⟹tan3x=12–√(12–√)+12

⟹tan3x=12+12=1

⟹3x=tan−1(1)=π4

⟹x=π12=15∘

⟹tan3(15∘)=sin45∘cos45∘+sin30∘

⟹tan45∘=sin45∘cos45∘+sin30∘

Answer 2

The answer is 0 as show above