Question

(2) 4sin ^ 2+ 4cos^2 =
(A)- 4
(B) 3
C) 16
(D) 4​

Answer 1

Answer:

option d 4

Step-by-step explanation:

taking 4 as common..

4( sin² + cos²)

4(1) = 4

Answer 2

Answer:

OPTION D. IS THE RIGHT ANSWER

Step-by-step explanation:

$4 \sin {}^{2} + 4cos {}^{2} \\ = 4(sin {}^{2} +cos {}^{2} ).....(sin {}^{2} +cos {}^{2} = 1) \\ = 4 \times 1 \\ = 4.$