if sin a+cos a=m then prove that sin^6 a +cos^6 a is equal to [ 4 - 3 (m^2 -1)^2 ]/4
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AdityaAnand28:
in rhs last step
how can you cancel 4 without taking the lcm of 1 and 3 sin²Acos²a
oh sorry i was confused u r write
thank u
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