Math, asked by mahidhar26, 1 year ago

if sin2a+sin3a=x and cos2a+cos3a=y then cos a=?

Answers

Answered by RIZAAFTAB
1

Answer:

Step-by-step explanation:

sin3A+sin2A= cos2a+cos3a

2sin(A+3A)/2*cos(3A-A)/2+sin2A=sinB

2sin2A*cosA+sin2A=sinB-----(1) Similarly in case of cos

2cos2A*cosA+cos2A=cosB------(2) Dividing 1&2

Sin2A(cosA+1)/cos2A(cosA+1)=sinB/cosB

tan2A=tan B

​2A=B

Answered by madhavipotu5
2

Answer:-----------

Step-by-step explanation:sorry iam still 8th class i dont know

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