Math, asked by Aadeshpandya, 8 months ago

evaluate - cos 70/sin 20+cos 58/sin 32 -8sin square45

Answers

Answered by anagha24june

2

Answer:

-2

Step-by-step explanation:

cos70/sin20 + cos58/sin32 - 8sin²45

= sin20/sin20 + cos58/cos58 - 8(1/root2)²

= 1 + 1 - 8×1/2

= 2 - 4

= -2

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