3 sinp + 4 cos theta …
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Gaurav Seth 5 years, 4 months ago
3sinP+4cosQ=6 -----(1)
4sinQ+3cosP=1 -----(2)
square and add both the equations,
so we get,
p+q=150
now apply theorem of sum of angles of triangle,
P+Q+R=180
we know that, P+Q=150
so,
R=180°-150°
R=30°
Therefore,
R=π/6
OR
The correct answer is:
1Thank You