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If sinA=cosA then find value of …

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If sinA=cosA then find value of 2tanA+cos*cos

Posted by Devisha Gondaliya 7 years ago

CBSE > Class 10 > Mathematics

1 answers

Ram Kushwah 7 years ago

sinA=cosA

sinA/cosA=1

tanA=1

and cosA=1/(1+tan²A)^1/2

=1/{tex}\sqrt2{/tex}

so 2tanA+ Cos2A=2*1 +1/2

=5/2

3Thank You

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CBSE > Class 10 > Mathematics