Question

(1+sin o) (1-sin o)
(1 + (050) (1-ws O)​

Answer 1

Answer:

(1 + sin o) (1 - sin o) = cos^2

Step-by-step explanation:

(1 + sin o) (1 - sin o)

(a + b) (a - b) = a^2 - b^2

(1 + sin o) (1 - sin o) = 1^2 - sin^2 o

(1 + sin o) (1 - sin o) = 1 - sin^2 o

sin^2 o + cos^2 o  = 1

cos^2 = 1 - sin^2 o

(1 + sin o) (1 - sin o) = cos^2