Mathematics

Question: Which of the following corresponds to the principal value branch of tan-1 ? Which of the following corresponds to

Question: If sin-1 (x2 – 7x + 12) = nπ, forall { n} in {Z} , then x equals If

Question: Let sin-1 x + sin-1 y + sin-1 z = (3π)/(2) for 0 ≤ x, y, z ≤ 1

Question: The value of x satisfies the inequality [tan-1x]2 – 2 [tan-1x] – 3 ≤ 0 , where [.] represent

Question: If {cosec} θ – cot θ = (1)/(√3) , where θ ≠ 0 , then what is the value

Question: What will be the value of cos 12circ + cos 84circ + cos 156circ + cos 132circ ? What

Question: What is the least value of 25 cosec2 x + 36 sec2 x ? What is the least value

Question: If cot α and cot β are the roots of the equation x2 – 3x + 2 = 0

Question: If sin θ = 3 sin(θ + 2α) , then the value of tan(θ + α) + 2 tan

Question: If p = X cos θ – Y sin θ, q = X sin θ + Y cos θ