If sin A equals fraction numerator c over denominator square root of c squared plus d squared end root end fraction space & space d greater than 0 comma
find the values of cosA & tanA

Asked by araima2001 | 15th Sep, 2015, 10:52: AM

Expert Answer:

G i v e n space t h a t comma space sin A equals fraction numerator c over denominator square root of c squared plus d squared end root end fraction comma space d greater than 0 W e space k n o w space t h a t comma space cos A equals square root of 1 minus sin squared A end root space space space space space space space space equals square root of 1 minus open parentheses fraction numerator c over denominator square root of c squared plus d squared end root end fraction close parentheses squared end root space space space space space space space space equals square root of 1 minus open parentheses fraction numerator c squared over denominator c squared plus d squared end fraction close parentheses end root space space space space space space space space equals square root of fraction numerator c squared plus d squared minus c squared over denominator c squared plus d squared end fraction end root space space space space space space space space equals square root of fraction numerator d squared over denominator c squared plus d squared end fraction end root space space space space space space space space equals fraction numerator d over denominator square root of c squared plus d squared end root end fraction tan A equals fraction numerator s i n A over denominator cos A end fraction space space space space space space space space equals c over d

Answered by Vimala Ramamurthy | 16th Sep, 2015, 10:51: AM

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