Question

by using Pythagorean thereom
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Answer 1

Answer:

we can't solve this using phythagorean thereom but I have another solution

Answer 2

Question:

To prove the given equations.

Solution:

1st Question:

${sin}^{2} \alpha + {cos}^{2} \alpha$

$(1 - {cos}^{2} \alpha ) + {cos}^{2} \alpha$

$1$

${sin}^{2} \pi + { cos}^{2} \pi$

2nd Question:

${sec}^{2} \alpha - {tan}^{2} \alpha$

$(1 + {tan}^{2} \alpha ) - {tan}^{2} \alpha$

$1$

${sec}^{2} \pi - {tan}^{2} \pi$

I have used pi instead of thita...

Hope it helps...

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