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| 1. |
If sinA=cosA then find value of 2tanA+cos*cos |
| Answer» sinA=cosAsinA/cosA=1tanA=1and cosA=1/(1+tan2A)1/2=1/{tex}\\sqrt2{/tex}so 2tanA+ Cos2A=2*1 +1/2=5/2 | |