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ICSE Class 9 Answered

5 sin^2s+4 cos^2s=2/9, find tan s  
Asked by Swapan | 14 Feb, 2018, 14:26: PM
answered-by-expert Expert Answer
begin mathsize 16px style 5 sin squared straight s plus 4 cos squared straight s equals 2 over 9 sin squared straight s plus 4 sin squared straight s plus 4 cos squared straight s equals 2 over 9 sin squared straight s plus 4 open parentheses sin squared straight s plus cos squared straight s close parentheses equals 2 over 9 sin squared straight s plus 4 equals 2 over 9 sin squared straight s equals 2 over 9 minus 4 sin squared straight s equals fraction numerator 2 minus 36 over denominator 9 end fraction equals fraction numerator negative 34 over denominator 9 end fraction which space is space not space possible space check space the space question end style
Answered by Arun | 14 Feb, 2018, 16:25: PM

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