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If 4sin² θ = 3(1+ cos θ), 0° < θ < 90°, then what is the value of (2tan θ + 4sinθ - secθ)?
If sin x + cos x = √2 sin x, then the value of sin x - cos x is:
If x = 4 cos A + 5 sin A snd y = 4 sin A – 5 cos A, then the value of x2+y2 is :
Find the value of sin265o + sin225o + cos235o + cos255o.
...(cos5°+sin5°)/(cos5°-sin5°) is equal to:
If tan α = 1/2, tan β = 1/3, then find α + β.
sin2 12˚ + sin2 14˚ + sin2 16˚ + sin2 18˚ + ……… + sin2 78˚ =?
What is the value of [(tan 5θ + tan 3θ)/4 cos 4θ (tan 5θ – tan 3θ)]?
