Prove that begin mathsize 20px style 2 tan to the power of negative 1 end exponent open parentheses bevelled 1 fifth close parentheses plus s e c to the power of negative 1 end exponent open parentheses 5 bevelled fraction numerator square root of 2 over denominator 7 end fraction close parentheses plus 2 tan to the power of negative 1 end exponent open parentheses bevelled 1 over 8 close parentheses equals bevelled straight pi over 4 end style

Asked by sunil2791 | 21st Apr, 2017, 07:37: PM

Expert Answer:

LHS =
Hence proved.

Answered by Rebecca Fernandes | 27th Nov, 2017, 12:44: PM

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