Sin² (90-70°)+cos² 70°+cot25/cot(90-25) + cot5cot85 cot10cot80 cot60 Sin² 70+cos² 70 + cot25/cot25 + cot5tan5 tan80cot80 1√3 1+1+1.1.1/√3 2+1/√3 2√3+1/√3

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Sneha Singh 6 years, 10 months ago

Is this cos square 20

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