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3 sinp + 4 cos theta equal to 6 and 4 sin theta + 3 cos b equal to 1 then find the value of angle or |
| Answer» 3sinP+4cosQ=6 -----(1)4sinQ+3cosP=1 -----(2)square and add both the equations,so we get,p+q=150now apply theorem of sum of angles of triangle,P+Q+R=180we know that, P+Q=150so,R=180°-150°R=30°Therefore,R=π/6\xa0\xa0ORThe correct answer is: | |