Prove that sin? + cos²0 =1.
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Answer:
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Answered by
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Appropriate Question -:
Prove that:
Answer :-
Let's take a right-angled triangle ABC, where angle B = 90°,
FIGURE :-
- Refer the attachment.
We know,
Therefore,
And
Now,
(sin²θ + cos²θ) = +
[AC² in numerator ∵ BC² + AB² = AC²],
Hence,
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