If sin^2 0 + sin 0 = 1, then prove that cos^2 0 + cos^4 0 = 1
Answers
Answered by
3
Answer:
We know that,
1- sin^2 = cos ^2
Now, substitute ,
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hope it helps.....
Answered by
1
Step-by-step explanation:
sin²o +sin o = 1
1= sin²o +cos²o ---A
sin²o + sin o = sin²o + cos²o
removing sin²o on both sides
sino = cos²o
squaring on both sides
sin²o = cos⁴o ----B
substitute B in A
cos²o+ cos⁴o=1
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