Math, asked by rajdev123321abcd, 3 months ago

यदि Sin (A+2B)=½ तथा Cos (A+4B) = 1/√2,p A>B तो A व B का मान निकालो​

Answers

Answered by vanshikav741gmailcom
10

Step-by-step explanation:

sin(A+2B)=1/2

sin(A+2B)=sin30°

A+2B=sin30°/sin

A+2B=30°. _____1

cos(A+4B)=1/√2

cos(A+4B)=cos45°

A+4B=cos45°/cos

A+4B=45°. ______2

equation 1&2

A+2B=30°.

A+4B=45°

-. -. -

__________

0-2B=-15°

2B=15

B=15/2

A+2B=15/2

A+2(15/2)=30

A+15=30

A=30-15

A=15

thus,A=15

B=15/2

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