Question

Answer this question properly​

Answer 1

Answer:

(1+ sin¢ ) (1 - sin¢ ) = 7/23

Step-by-step explanation:

Given :- Tan¢ = 4/√7 = perpendicular (p) /base (b)

hypotenuse "h" = √p²+b² = √ 4²+(√7)² = √16+7 = √23

• ∵ (1+sin¢) (1-sin¢) = 1-sin²¢ = cos²¢

• cos²¢ = (base/hypotenuse)²= (√7)²/(√23)² = 7/ 23

∴ (1+sin¢)(1-sin¢) = 7/23Answer

Answer 2

(Sintheta+1)(sintheta)= (2)(1/4)=1/2 I hope this answer helped you mark me as brainliest