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C4 plants are more efficient than C3 due to their high rate of photosynthesis and absence of photorespiration.
In a right triangle ABC, angle B = 90°. If tan A = 3/4 and the length of the hypotenuse is 25 cm, find the area of the triangle.
What is the value of (4/3) cot2 (p/6) + 3 cos2 (150o) – 4 cosec2 45o + 8 sin (p/2)?
...If x = r sin A cos B, y = r sin A sin B and z = r cos A, then find x² + y² + z².
If tan θ = (2/√5), then determine the value of cos2 θ
What is the value of cos75°?
If cos θ + sec θ = √2, then the value of cos³ θ+ sec³ θ is:
cot 4˚ x cot 47˚ x cot 42.3˚ x cot 43˚ x cot 47.7˚ x cot 86˚= ?
If sec 4A = cosec (3A - 50°), where 4A and 3A are acute angles, find the value of A + 75.
