Question
Simplify the following trigonometric expression:13cos
63 o cosec 27 o - 5cot 56 o cot 34 oSolution
13cos 63 o cosec 27 o - 5cot 56 o cot 34 o
= 13cos 63 o cosec (90 o - 63 o ) - 5cot 56 o cot (90 o - 56 o )
Using, cosec (90 - A) = sec A and cot (90 - A) = tan A
= 13cos 63 o sec 63 o - 5cot 56 o tan 56 o
Since, sec A is reciprocal of cos A and cot A is reciprocal of tan A.
= 13 - 5 = 8
Read the following information carefully to choose the best option for the question:
‘P % Q’ means that ‘P is the sister of Q’.
�...
Which one of the following is not a characteristic of the Mughal chronicles?
Under the Factories Act 1948, how many minimum numbers of workers are required to establish “Canteen” facility in factory?
Jet Streams are:
If there is a loss of 20% on selling the article at 16/21 of the original selling price then what will be the percentage profit after selling the articl...
The 'Grand Trunk Road' connects
In the given analogy, choose the word which will replace the question mark:
NEGI : MVTR :: SING : ?
Consider the following statements:
1. The instruments of the security market are traded directly between the capital-raiser and the instrument ...
Match List-I (City) with List-II (River Passing through the city) and select the correct answer using the codes given below the lists:
What are the qualifications laid down by the Constitution for appointment of the governor?
1. He should not belong to the state to which he is...
Relevant for Exams:
