cot10° cot 15° cot 60° cot 75° cot 80°=
wardahd1234:
answer will be one
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Step-by-step explanation:
cot10° cot 15° cot 60° cot 75° cot 80°
=cot(90-80)° cot(90-75)° cot60° cot75° cot 80°
=tan80° tan75° (1/√3) cot75° cot 80°
=tan80° tan75° (1/√3) 1/tan75° 1/tan80°
=1/√3
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