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(cos5°+sin5°)/(cos5°-sin5°) is equal to:
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
...tan 1˚ × tan 2˚× …………………….tan 88˚ × tan 89˚ = ?
If θ is an acute angle and sin θ + cosec θ = 2, then the value of sin2 θ + cosec2 θ is:
If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?
If sin3A = cos(5A-30°), then what is the value of A? Given that 3A is an acute angle.