Question

Plz guys help me i will mark as brainlist also follow u​

Answer 1

Step-by-step explanation:

we can write sin15 as sin(45-30)

sin(A-B)= sinA.cosB - cosA.sinB

sin(45-30)=sin45.cos30 - cos45.sin30

                =1/√2×√3/2 - 1/√2×1/2

                 =√3/2√2 - 1/2√2

                 = (√3-1)/2√2

       hence proved....

Answer 2

Answer:

Hope you was helped ....