(1) 2 tan®45° + cos? 30° — sin? 60°sin 30° + tan 45° — cosec – InterviewSolution

InterviewSolution

1.

(1) 2 tan®45° + cos? 30° — sin? 60°sin 30° + tan 45° — cosec 60°sec 30° + cos 60° + cot 45°(४)

Answer»

Tan45=1cos30=√3/2sin60=√3/2cosec60=2/√3sec30=2/√3

hence 1)=2(1)+3/4-3/4=22)1/2+1-2/√3/2/√3+1/2+1=3/2-2/√3/2/√3+3/2=3√3-4/3√3+4

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