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The BRICS New Development Bank (NDB) announced that it will add Egypt as its new member. Egypt is the fourth member of the New Development Bank (NDB) that was established by the BRICS countries six years ago. The NDB admitted Bangladesh, United Arab Emirates (UAE) and Uruguay as its new members in September.
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: