Please tell

Asked by  | 17th May, 2009, 06:03: PM

Expert Answer:

sin2A+cos2A+sec2A+cosec2A+tan2A+cot2A =  1+ 1+tan2 A + 1+cot2 A+ tan2 A+ cot2 A (using identities)

                                                               =  3+2(tan2  A + cot 2 A) 

minimum value of  (tan2  A + cot 2 A) =  2 

So Minimum value of sin2A+cos2A+sec2A+cosec2A+tan2A+cot2A = 7

Answered by  | 21st May, 2009, 11:17: AM

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