Math, asked by mannu0608, 1 year ago

plz help me in this question I want with solution

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Answered by Anonymous
1
l 1+cos theta + isin theta)
[This is the rule of modulus that it's the sum of sq of coefficient of real and imaginary part
Now

Look here
lx+iyl=x sq + ysq
Same thing we apply in this ques](for understanding )

(1+cos theta)sq + sin sq theta
1+ cos sq theta + 2 cos theta + sin sq theta
2+2 cos theta
2 (1 + cos theta) ans

mannu0608: Thanks
Anonymous: it's my pleasure friend
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