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Recently, North Korea test-fired an intercontinental ballistic missile (ICBM) powered by solid fuel. Solid-fuel missiles do not need to be fueled immediately ahead of launch. They are often easier and safer to operate, and require less logistical support. They are harder to detect and more survivable than liquid-fuel weapons. Solid propellants are a mixture of fuel and oxidizer. Metallic powders such as Aluminium often serve as the fuel, and ammonium perchlorate, which is the salt of perchloric acid and ammonia, is the most common oxidizer.
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
...If 4cos2x - 3 = 0, and (0° > x > 90°), then find the value of 'x'.
If tan θ = (2/√5), then determine the value of cos2 θ
If √3cosec 2x = 2, then the value of x:
If x = (sin 30 ° + cos 30 ° )/sec 60 ° , then find the value of 4x.
If sin3A = cos(5A-30°), then what is the value of A? Given that 3A is an acute angle.
If sin x + cos x = √2 sin x, then the value of sin x - cos x is:
Simplify the given equation:
