Grade 10Trigonometry
Can U plz help me to solve this? If xsin3A+ycos3A=sinAcosA and xsinA=ycosA, prove that, x2+y2=a2+b2
Can U plz help me to solve this?
If xsin3A+ycos3A=sinAcosA
and xsinA=ycosA, prove that, x2+y2=a2+b2
1 Answer
Sourabh Singh
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
Use that relation for the first one and you will get the answer
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