If (a2 − b2)sin θ + 2ab cos θ = a2 + b2, then tan θ =
(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
Don't look a gift horse in the mouth
Fill in the blank given below using the correct idiom.
The athlete's dedication to training paid off when he won the championship, and his vi...
To fish in troubled waters
Select the most appropriate meaning of the Given idiom.
Get a gold star :
Widely known and esteemed
Fill in the blank with an appropriate idiom.
Her husband is such a gem that all her friends tell her that she has ________ with him.
When the detective pointed out the smallest detail that connected all the evidence together, he hit the nail on the head and uncovered the true identi...
An entrepreneur must keep his fingers on the pulse of the market to be successful.
The bee’s knees
Put the cat among the pigeons
