Evaluate: (cossquare 20 + cos square 70) + cot 25/ tan 65 + cot 5 cot 10cot 60 cot 80 cot 85
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hi friend,
cos²20+cos²70+cot25/tan65+cot5cot10cot60cot80cot85
=cos²20+(sin20)²+tan65/tan65+cot5cot10cot60tan10tan5
=since cos²x+sin²x=1
1+1+cot60
2+1/√3
I hope this will help u :)
cos²20+cos²70+cot25/tan65+cot5cot10cot60cot80cot85
=cos²20+(sin20)²+tan65/tan65+cot5cot10cot60tan10tan5
=since cos²x+sin²x=1
1+1+cot60
2+1/√3
I hope this will help u :)
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