Question

If sin A = cos A. Find the value of
$2tan^{2} + sin^{2} + 1$

Answer 1

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THE ANSWER IS HERE,

SinA = CosA.

=> SinA/CosA =1

=> TanA =1

=> TanA=Tan45.

=> A=45.

$= > \: 2({ \tan(45) })^{2} + ( { \sin(45) })^{2} + 1$

$= > \: 2 ({1})^{2} + ({ \frac{1}{ \sqrt{2} } })^{2} + 1$

$= > \: 2 + \frac{1}{2} + 1$

$= > \: 3 \frac{1}{2}$

$= > \: \frac{7}{2}$

:-)Hope it helps u.