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CBSE Class 10 Answered

Evaluate: Tan²60°+4sin²45°+3sec²30°+5cos²90° ÷ Cosec30°+sec60°-cot²30°
Asked by Suraj601536 | 29 Jan, 2019, 09:59: PM
answered-by-expert Expert Answer
begin mathsize 16px style fraction numerator tan squared 60 degree plus 4 sin squared 45 degree plus 3 sec squared 30 degree plus 5 cos squared 90 degree over denominator cosec 30 degree plus sec 60 degree minus cot squared 30 degree end fraction equals fraction numerator begin display style open parentheses square root of 3 close parentheses squared plus 4 open parentheses fraction numerator 1 over denominator square root of 2 end fraction close parentheses squared plus 3 open parentheses fraction numerator 2 over denominator square root of 3 end fraction close parentheses squared plus 5 cross times 0 end style over denominator begin display style 2 plus 2 minus open parentheses square root of 3 close parentheses squared end style end fraction equals fraction numerator begin display style 3 plus 2 plus 4 end style over denominator begin display style 2 plus 2 minus 3 end style end fraction equals 9 over 1 equals 9 end style
Answered by Sneha shidid | 30 Jan, 2019, 09:38: AM

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