Exams

The value of cos220°+cos270° is

National Press Day is celebrated on

What is the effective resistance (in Ω) of two resistors 20 Ω and 30 Ω connected in parallel?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.

To delay or prevent someone or something by obstructing them

The price of an article is cut by 24%, to restore to its original value, the new price must he increased by ______.

If "α" denotes "subtracted from", "β" denotes "multiplied by", "θ" denotes "added to" and "δ" denotes "divided by", then 10 θ 8 β 4 δ 8 α 9 = ?

If tan A = 1/2 and tan B = 1/3, then what is the value of tan (2A + B)?

In the following question, four words are given out of which one word is correctly spelt. Select the correctly spelt word.