Can U plz help me to solve this ? If xsin 3 A+ycos 3 A=sinAcosA and xsinA=ycosA, prove that, x 2 +y 2 =a 2 +b 2

Question

Sourabh Singh · Answer

yeah jsut put the value of sin in terms of cos and you will get relations from second equation. Use that relation for the first one and you will get the answer

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Can U plz help me to solve this ? If xsin 3 A+ycos 3 A=sinAcosA and xsinA=ycosA, prove that, x 2 +y 2 =a 2 +b 2

Can U plz help me to solve this?
If xsin³A+ycos³A=sinAcosA
and xsinA=ycosA, prove that, x²+y²=a²+b²

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Can U plz help me to solve this ? If xsin 3 A+ycos 3 A=sinAcosA and xsinA=ycosA, prove that, x 2 +y 2 =a 2 +b 2

Can U plz help me to solve this? If xsin3A+ycos3A=sinAcosA and xsinA=ycosA, prove that, x2+y2=a2+b2

1 Answers

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Can U plz help me to solve this?
If xsin³A+ycos³A=sinAcosA
and xsinA=ycosA, prove that, x²+y²=a²+b²