If Sin (A+2B) = 1/2 and Cos ( A +4B ) = 1/√2,A>B then find A and B
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Answer:
A=30°
B=15°
.. hope this helps you ..
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Values are A= 15° and B=7.5°
Given:
- and
To find:
- Find the value of A and B, where A>B.
Solution:
Concept to be used:
Step 1:
Remove trigonometric ratios from both equations.
Cancel sine from both sides.
Similarly
Step 2:
Solve eq1 and eq2 for A and B.
Subtract eq1 and eq2.
put the value of B in eq1
Thus,
Values are A= 15° and B=7.5°.
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