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Evaluate: 3 cos 80° cosec 10° + 2 cos 59° cosec 31°
If A, B, and C are the angels of a △ABC then the following is equal to :sin\(({B+C \over2})\)
The value of \({30.25 \% \space of \space 40200} \over 16.75 \% \space of \space 24200\)is
Tap P can fill a cistern in 6 hours and tap Q can empty the full cistern in 10 hours. If both taps P and Q are kept open simultaneously, then in how many hours will the empty cistern be completely full ?
The value of \(sec\theta(1-sin\theta)(sin\theta+cos\theta)(sec\theta+tan\theta)\over sin\theta(1+tan\theta)+cos\theta(1+cot\theta)\) is equal to :