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Asked by Xvirat1 | 19 Jan, 2019, 11:27: AM
answered-by-expert Expert Answer
begin mathsize 12px style 1 space plus space sin to the power of 4 x space equals space cos squared 3 x 1 plus open parentheses sin squared x close parentheses squared space equals space open parentheses cos space 3 x close parentheses squared space 1 plus open parentheses 1 minus cos squared x close parentheses squared space equals space open parentheses 4 space cos cubed x space minus space 3 space cos space x close parentheses squared 1 plus 1 plus cos to the power of 4 x minus 2 cos squared x space equals space 16 space cos to the power of 6 x space plus space 9 space cos squared x space minus 24 space cos to the power of 4 x 16 space cos to the power of 6 x space minus space 25 space cos to the power of 4 x space plus space 11 space cos squared x space minus space 2 space equals space 0 space........... left parenthesis 1 right parenthesis l e t space space cos x space equals space alpha comma space W e space r e w r i t e space e q n. left parenthesis 1 right parenthesis space a s space colon space space 16 alpha to the power of 6 space minus space 25 alpha to the power of 4 space plus space 11 alpha squared space minus space 2 space equals space 0 space space space........ left parenthesis 2 right parenthesis E q n. left parenthesis 2 right parenthesis space h a s space s o l u t i o n space alpha space equals space plus-or-minus 1 w h e n space alpha space equals space cos x space equals space 1 space comma space x space equals space 2 pi w h e n space alpha space equals space cos x space equals space minus 1 space comma space x space equals space pi t h e n space t h e space g r e a t e s t space p o s i t i v e space s o l u t i o n space i s space x space equals space 2 pi end style
Answered by Thiyagarajan K | 20 Jan, 2019, 10:56: AM

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JEE main - Maths
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Asked by kantarathi293 | 04 May, 2024, 11:16: AM
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JEE main - Maths
X²+2X-3≤0 solve following inequalities over the set of real number 
Asked by aniyoggavhane38 | 03 May, 2024, 09:41: PM
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JEE main - Maths
let (-2-i/3) ^3
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Asked by priyadharshinigopinath27 | 03 May, 2024, 08:44: PM
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JEE main - Maths
maths sum
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Asked by keerthananukala2007 | 02 May, 2024, 11:32: AM
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JEE main - Maths
I didn't understand thid
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Asked by amrutmasaguppi1108 | 01 May, 2024, 11:10: PM
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JEE main - Maths
the probability of attending a conference is 0.5, and the probability of attending a workshop is 0.3. if 40% of conference attendees also attend workshops, what is the probability that a student attends a workshop given that they attended a conference?
Asked by ms9876tr | 28 Apr, 2024, 12:05: PM
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JEE main - Maths
a+bx e power of y/x =x then d square y by dx square
Asked by jameelmohd765 | 27 Apr, 2024, 10:23: AM
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JEE main - Maths
find
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Asked by komuravellysravanthi4 | 26 Apr, 2024, 02:14: PM
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JEE main - Maths
solution please
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Asked by piyurawriya | 24 Apr, 2024, 12:46: PM
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JEE main - Maths
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