1.

4coso-V3 sinoIf sec 8=2, then evaluate :=tano-cote.

Answer»

If sec theta= 2cos = 1/2theta= 60°sin= √3/2tan = √34cos60°-√3sin60/tan60-cot60

= 2-3/2/√3-1/√3-1/2/2/√3-√3/4



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