JEE Main 2012Annual, Paper 1MathematicsMediumProperties of Triangle19× since 2002In a ΔPQR, \Delta PQR,{\mkern 1mu} {\mkern 1mu} {\mkern 1mu}ΔPQR, If 3 sin P+4 cos Q=63{\mkern 1mu} \sin {\mkern 1mu} P + 4{\mkern 1mu} \cos {\mkern 1mu} Q = 63sinP+4cosQ=6 and 4sinQ+3cosP=1,4\sin Q + 3\cos P = 1,4sinQ+3cosP=1, then the angle R is equal to :AOption A. 5π6{{5\pi } \over 6}65πBOption B. π6{{\pi } \over 6}6πCOption C. π4{{\pi } \over 4}4πDOption D. 3π4{{3\pi } \over 4}43πCheckSkip · show solution
