Math, asked by akshitaaditi6200, 4 months ago

5. Prove that:

sin ⭕cos ⭕(90° - ⭕) + sin (90° - ⭕) cos ⭕ = 1​

Answers

Answered by kareypadhaigmailcom
2

Step-by-step explanation:

sin 0 is zero

hence first part

sin ⭕cos ⭕(90° - ⭕) equals zero

second part

sin (90° - ⭕) cos ⭕

cos 0 is 1

sin 90 is 1

hence 1× 1 is 1

LIKE FOLLOW

IF USEFUL

Answered by prachi5481
2

Answer:

sin⭕️ cos(90°-⭕️) + sin(90°-⭕️) cos⭕️ = 1

sin⭕️ sin⭕️ + sin(90°-⭕️) cos⭕️ = 1 [cos(90°-⭕️) = sin⭕️]

sin²⭕️ + cos⭕️ cos ⭕️ = 1 [ sin(90°-⭕️) = cos⭕️]

sin²⭕️+ cos²⭕️ = 1

1=1

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