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ICSE Class 9 Answered

Tan2 30°+tan2 45°+tan2 60°

Asked by Likithavenk | 18 Jun, 2019, 09:36: PM

Expert Answer

begin mathsize 16px style tan squared 30 degree plus tan squared 45 degree plus tan squared 60 degree equals open parentheses fraction numerator 1 over denominator square root of 3 end fraction close parentheses squared plus space open parentheses 1 close parentheses squared space plus space open parentheses square root of 3 close parentheses squared equals 1 third plus space 1 space plus space 3 equals space 1 third plus fraction numerator space 1 cross times 3 space over denominator 1 cross times 3 end fraction plus space fraction numerator 3 cross times 3 over denominator 1 cross times space 3 end fraction equals fraction numerator 1 plus 3 plus space 9 over denominator 3 end fraction equals 13 over 3 end style

Answered by Yasmeen Khan | 19 Jun, 2019, 09:31: AM

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