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