Question
In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find
out the value of cos A?Solution
From Cosine rule, we get BC2 = AB2 + AC2 - 2AB.AC.cos A 36=25+100-2×5×10×Cos A 100CosA=125-36=89 cos A = 89/100 .
Blow up
A. The demolition crew used dynamite to blow up the old building and clear the space for a new development.
B. The intense ar...
A. New and rapidly developing technological advances made our lives easier.
B. With the creation of weapons that could kill a large number of ...
In each of the following sentences a word or phrase is bold and given a number. Pick a choice of number where the error lies.
1) The manager, 2)...
Relating to tasks normally performed by a servant
Choose the correct word that can replace the given phrase.
a person who is fanatical about cleanliness and tidiness
We should _________ for a rainy day. (find appropriate Phrasal verb)
Person with independent or unorthodox views
Direction: Identify the sentence in which the given phrasal verb is used CORRECTLY.
Bring About
A. The old computer can't bring about th...
The old man ________ without any trouble last night.
Set off
A. We need to set off early tomorrow to avoid traffic on the way to the beach.
B. The alarm clock will set off at 6 AM to wak...
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