Questions

If r sinθ=3 and r cosθ=1, then the values of r and θ are: (0°⩽θ≤90°)

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

British achieved political power in India after which of the following ?

The Gandhara art - a style of Buddhist visual art that developed between 1st century BCE and the 7th century CE, flourished largely during the ____ dynasty.

Term ecosystem was coined by

In the following question, select the odd word pair from the given alternatives.

Big landlords or warrior chiefs in the seventh century were acknowledged as _________ by the existing kings?

If a + b = 17 and a - b = 9 then the value of (4a2 + 4b2) is,