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tan3θ = (3tan10°-tan³10°)/(1-3tan²10°) Therefore, (3tan10°-tan³10°)/(1-3tan²10°) = tan3 × 10° → tan30° = 1/√3
If x/y = 5/3, Find (x+y)/(x-y)?
If there are a total of 1000 students in the school, how many students prefer Mathematics and science?
If for non-zero x, x² - 4x - 1 = 0, what is the value of x² + 1/x²?
If p = 11, then what is the value of 
If AB = x + 3, BC = 2x and AC = 4x − 5, then for what value of ‘x’ does B lie on AC?
Find the largest 5-digit number that is divisible by 12, 15, 18, and 24. Also, what is the remainder when this number is divided by 11?
For a =-4 and b = 5, value of a² – b² is:
