Math, asked by 112344, 1 year ago

sin power 6 +cos power 6 +3 sin square cos square =1

Answers

Answered by Nakulgoel
1
SubjectMatterExpert

Member since Sep 21 2013

Consider, sin6+cos6ө =1-3sin2өcos2ө
(sin2ө)3+(cos2ө)3= (sin2ө+cos2ө)3− 3 (sin2ө cos2ө)(sin2ө+cos2ө) = 1 − 3sin2өcos2ө [Since sin2ө+cos2ө = 1]

Comment (0)

more_horiz

, Student

Member since Dec 10 2008

Consider, sin6ө + cos6ө =1-3sin2өcos2ө
(sin2ө)3 + (cos2ө)3 = (sin2ө + cos2ө)3 − 3 (sin2ө cos2ө)(sin2ө + cos2ө)   [since a + b = (a+b)3 − 3ab(a+b)]
                           = 1 − 3sin2өcos2ө    [Since sin2ө + cos2ө = 1]

This is your answer of sin power 6 +cos power 6 +3 sin square cos square =1

112344: it is very difficult to understand plz do it in notebook then send me pic plz plz its very urgent
Nakulgoel: Ok
Nakulgoel: l am sending
112344: okk thank you
Answered by Anonymous
1
This is the proof, I guess.
Attachments:

112344: there is a little mistake in 2nd step... according to mine. plz solve my other problems
Anonymous: What mistake exactly? Tell me, and I'll try to get myself right.
112344: no no it is right.. i know what you doing
112344: thnx
Anonymous: You're welcome
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