Physics, asked by pilaniamanjeet, 1 year ago

Please give detailed explanation

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Answered by joshihimanshu46
1
hey buddy,

the answer of this question will be a.

c=a sin@ + b Cos@

c/√(a^2+b^2)= (a sin@ /√(a^2+b^2) + (b cos@/√(a^2+ b^2)

 

If u take a right angled triangle witrh sides a, b then its hypotenues will be √(a^2+b^2)
in this triangle let the other angle be $
 

 

therefore its in the form of:

 

c/√(a^2+b^2) = cos $ sin @ + sin$ cos @

since, sin(@+$) = cos $ sin @ + sin$ cos @

 

c= √(a^2+ b^2) sin($+@)

and $ + @ = 90


therefore

a sin@ + b cos $ will be
√(a^2+ b^2)

hope it will help

joshihimanshu46: do u know the range of value of sin and cos
pilaniamanjeet: if theta will be 90 then sin will be 1 but cosine will become zero
joshihimanshu46: ok
joshihimanshu46: i thought the value of theta can be different
pilaniamanjeet: OK if you get something plz tell me
joshihimanshu46: i am going to edit the ans
joshihimanshu46: ya a is the right ans
joshihimanshu46: somebody have reported my ans
joshihimanshu46: i can't edit it
joshihimanshu46: hey buddy its done
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