Evaluate (sec2 90-Theta) (cot2Theta) divided by 2(sin2 25 + sin2 65) + 2 cos2 60 tan2 28 tan2 62 divided by 3(sec2 43 cot2 47) + cot 40 divided by tan 50 (3-a-day)

    sec290°-θ - cot2θ2sin225° + sin265° + 2cos260° tan228° tan262°3sec243° - cot247° + cot 40°tan 50°=cosec2θ - cot2θ2sin290°-65° + sin265°  + 2×14 × tan290° - 62° tan2 62°3sec290°-47° - cot247°  + cot90°-50°tan 50°=12cos265°+sin265° + 12 × cot262° × tan262°3cosec247°-cot247° + tan 50°tan 50°=12×1 + 161tan262°×tan262°1 + 1=12 + 16 + 1=3+1+66=106=53

  • 26
What are you looking for?