1.

Tan13°tan21°tan30°tan69°tan77°

Answer» One upon root 3
Root 3
Itti jaldi aap thita wale chapter padhne lage
Tan30 answer
Tan(90-77)tan21tan30 tan(90-21)tan77Cot77tan21tan30cot21tan771/tan77 tan21 tan30 1/tan21 tan77


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