1.

Sin2 48 degree + sin2 42 degree =1​

Answer»

Step-by-step EXPLANATION:

sin²48 + sin²42

sin²48 + sin²(90-48)

sin²48 + cos²48

(there is an IDENTITY Sin²A + Cos²A = 1)

THEREFORE sin²48+cos²48 = 1



Discussion

No Comment Found

Related InterviewSolutions