tan 45Q. 21. Evaluate cosec30+sec 60cot 452 sin 90cos 60 – InterviewSolution

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tan 45Q. 21. Evaluate cosec30+sec 60cot 452 sin 90cos 60

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tan45/cosec30 + sec30/ cot45 - 2sin90/cos60= (1)/(2) + (2/V3)- (2)(1)/(1/2)=1/2+2/V3-(2/2)=1/2+2/v3-1=V3-4-V3/V3=v3(1-4-+1)/v3=2

tan45/ cosec30=1/2; sec30/cot45=2/V3/1=V3/2; 2sin90/ cos60; 2(1)/1/2=4, ; 1/2 x V3/2x4=1/2 × V3/2×4=V3/4×4=V3

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