3 years ago

Help please BRAINLEISTTTTT

Mathematics

1 answer:

lesya [120]3 years ago

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Answer:

1) v 2)t 3)-5, 5.5

Step-by-step explanation:

ztydh

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Prove :<br>sin²θ + cos²θ = 1<br><br><br>thankyou ~

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See below

Step-by-step explanation:

Here we need to prove that ,

$\sf\longrightarrow sin^2\theta + cos^2\theta = 1$

Imagine a right angled triangle with one of its acute angle as $\theta$ .

The side opposite to this angle will be perpendicular .
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$\sf\longrightarrow sin\theta =\dfrac{p}{h} \\$

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And by Pythagoras theorem ,

$\sf\longrightarrow h^2 = p^2+b^2 \dots (i)$

Where the symbols have their usual meaning.

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Substituting the respective values,

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$\sf\longrightarrow\cancel{ \dfrac{h^2}{h^2}}\\$

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Since LHS = RHS ,

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I hope this helps.

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