Question
The angle of depression of a point on the ground as seen
from the top of a tower, 65 feet high, is 45°. Find the distance of the point on the ground from the foot of the tower.Solution
Let θ be the angle of depression of the point on the ground as seen from the top of a tower, here θ = 45° Let AC be the height of the tower, here AC = 65 feet. Let the distance of the point on the ground from the foot of the tower, AB = x feet. Here, tan θ = AC/AB ⇒ tan 45° = 65/x ⇒ 1 = 65/x ⇒ x = 65 feet
Parts of the following sentence are given as options. Identify the segment that contains a grammatical error.Â
When there were a strong wind, th...
Directions: In each of the questions, a sentence has been divided into four parts, one of which may contain an error. Identify that fragment and mark i...
Direction: In the following question, a sentence is given, divided into 5 parts. Part (E) is grammatically correct. Out of the other four parts, one pa...
- Read the following sentence to find out if there is any grammatical error in it. The error, if any, will be in one part of the sentence. The number of this...
In each question below, a sentence is given with a part of it printed in bold type. That part may contain a grammatical error. Each sentence is followed...
His advice to them was to not to lose faith upon God .
Those Cricket tournaments were (a) / held at many a place (b) / without any untoward incident. (c) / No error (d)
The sentence below has been divided into three parts. Select the part of the sentence that has an error. If the sentence has no error, select the option...
Thousands of scientific investigation have confirmed the association of smoking with the number of  diseases.Â
Everything has became very expensive these days.