Find the value of \(cot30°+cot75°+cot45°-sin90°+sin45° \over sin60°+cos30°+ tan15°+cos45°\)
If A & B are complementary angles, then the value of sinA.cosB + cosA.sinB - tanA.tanB + sec2A - cot2B is
A boat covers 12 km upstream & 18 km downstream in 3 hrs, while it covers 36 km upstream & 24 km downstream in 6.5 hrs. What is the speed of the current?
If \((2\space sin A+cosecA)=2\sqrt2\), where 0° < A < 90°, then the value of \(2(sin^4A+cos^4A)\) is:
If A, B, and C are the angels of a △ABC then the following is equal to :sin\(({B+C \over2})\)