sin+cos==???????????????????
iHelper:
Is my answer correct?
✓ DipinNoblePaul
ya
Thanks! :)
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Hello!
• sin x = √ 1 - cos² x
• cos x = √ 1 - sin² x
Then,
sin x + cos x = √ 1 - cos² x + √ 1 - sin² x
Cheers!
• sin x = √ 1 - cos² x
• cos x = √ 1 - sin² x
Then,
sin x + cos x = √ 1 - cos² x + √ 1 - sin² x
Cheers!
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