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ATQ, Let the cost price of the article be Rs.'a' According to the question, 1.15 × 0.85 × a = 1955 Or, a = 1955/0.9775 = Rs. 2000 Let the mark up percentage be b% According to the question, 2000 + b% of 2000 – 10% of (2000 + b% of 2000) = 1955 + 25 Or, 2000 + 20b – 200 – 2b = 1980 Or, 18b = 180 Or, b = 10%
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: