Question
If (a2 − b2)sin θ + 2ab cos θ
= a2 + b2, then tan θ =Solution
(a2 − b2) sin θ + 2ab cos θ = a2 + b2 divide it by a2 + b2 we get ((a2 − b2) sin θ) / (a2 + b2) + (2ab cos θ) / (a2 + b2) = 1 (sin2 θ + cos2 θ = 1) Here sin θ = (a2 − b2) / (a2 + b2) cos θ = 2ab / (a2 + b2) tan θ = (Sin θ) / (cos θ) = (a2 − b2) / 2ab
Herons formula is described as
Which of the following is the most decomposed form of organic matter? Â
India's current account deficit in Balance of Trade is mainly due to:
(a) Increasing imports of oil and petroleum
(b) Increasing impo...
In which country is the Ural Industrial Zone located?
Which of the following statements is NOT true for Indian monsoons?
What is the amount of insurance cover available for accidental death under the PradhanMantri Suraksha Bima Yojana (PMSBY)?
Who among the following coined the term "battery" to describe linked capacitors?
Name of which river among the following got associated with the water disputes tribunal of 1990 aimed at resolving the old issue of water sharing betwee...
Yuri Gagarin, the first cosmonaut to reach space, was from which country?
Who led the anti-mining movement of women of Khirakot?
Relevant for Exams:
