Question

sinsquar38+cossquar 38

Answer 1

sinsquar38+cossquar 38 = 1
we know that
sin^2+cos^2=1
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Answer 2

1

Step-by-step explanation:

Given:

We know that $Sin^2\alpha +Cos^2\alpha = 1$

So, $Sin^238 +Cos^238 = 1$

Alternate method:

$Sin^2\alpha +Cos^2\alpha = 1\\Sin^2\alpha = 1-Cos^2\alpha\\ So , Sin^238 + Cos^238\\(1-Cos^238) + Cos^238\\1- Cos^238 + Cos^238\\1$

Therefore : $Sin^238 +Cos^238 = 1$

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