Question
A vertical tower stands on a horizontal plane and is
surmounted by a vertical flag staff of height h. At a point on the plane, the angle of elevation of the bottom of the flag staff is and that of the top of the flag staff is Ī². Then the height of the tower isSolution
Apply tan 
Ā in āBCD Tan Ā = x / K k = (x / tan ) ---- (1) apply tanĪ² in āACD => tanĪ² = (Ä„+x) / K => K = (h + x) / (tanĪ²) ----- (2) Example like (1) and (2) => x / tan Ā = (h+x) / tanĪ² => xtanĪ² = tan h + xtan => xtanĪ² ā xtan Ā = h tan => x(tanĪ² ā tan ) = h tan => x = (h tan2) / (tanĪ² ā tan )
Select the most appropriate direct form of the given sentence.
I asked him where he had lost the pen I had brought for him the previous day.
Select the option which correctly converts the given sentence into indirect speech.
I said, "Let us not jump to a conclusion but wait till we get...
She ate the sweets greedily.
He said to her, "I will meet you here tomorrow."
He added that he was sure that whatever differences (2)/existed between two parties (3) /will be resolved through dialogue. (4) /No error (5).
Select the most appropriate direct form of the given sentence.Ā
Garima told her friends that she couldnāt go with them to the movie that night...
The officer said, "I am very busy now".
The manager said "Vivek must go tomorrow to meet the client".
Choose the option that is the indirect form of the sentence.
āHave you got a blue scarfā? the customer asked the assistant.
Select the correct indirect form of the given sentence.Ā
She said, āIs anyone there in the house?ā
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