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Pipe A (+) pipe B (+) pipe C (-) 6 8 10 120 (LCM of 6,8,10)-total 20 15 12. (efficiency) Tank fill in 1 hour =20+15-12=23unit. In 5 hours =23×5=115 unit Remaining empty tank. =120-115=5. 5 units fill in the tank in 5/23 hours. Total hours =5+5/23=5(5/23).
Find the value of sin265o + sin225o + cos235o + cos255o.
...If sin θ + cos θ = 1.2, find the value of sin θ. cos θ.
What is the value of cos75°?
What is the value of cos [(180 – θ)/2] cos [(180 – 9θ)/2] + sin [(180 – 3θ)/2] sin [(180 – 13θ)/2]?
Simplify the following trigonometric expression:
12 cos 68o cosec 22o - 3 cot 72o cot 18o
A person is standing at a point 120 meters away from a tower. The angle of elevation to the top of the tower is 60°. If the height of the tower increas...
If sin3A = cos(5A-30°), then what is the value of A? Given that 3A is an acute angle.
If sinAo = (√3/2), then find the value of (sin245o + cos230o) × A ÷ 5 given that 0 < A < 90...