Question
If sin 28° = 15/17 , then tan 62° = ?
Solution
sin 28° = 15/17 = perpendicular/hypotenuse So perpendicular = 15 & hypotenuse = 17 so base = 8 But for angle 62° which is complimentary of 28°, perpendicular = 8 & base = 15. So tan 62° = perpendicular/base = 8/15 Alternate Method sin 28° = 15/17 or cos (90°-28°) = 15/17 or cos 62° = 15/17 -----(1) Squaring on both sides, we will get cos2 62° = 225/289 or (1 - sin2 62°) = 225/289 or sin2 62° = 1 - 225/289 = 64/289 = 
So sin 62° = 8/17 ----(2) Hence tan 62° = sin62°/cos62° = =  Â
In the question given below, three sentences are given with one phrase bold in each. From the options given choose the one with the phrase that can rep...
Select the incorrectly spelt word
Out of the statements given below, one statement may be grammatically and contextually correct. Choose the correct statement as your answer. If all the ...
In the question below, four sentences are given which may or may not contain an error. Choose the one that is grammatically correct and meaningful. If a...
Identify the correct sentence from the options below:
The doctor slapped his face a couple of times to try to bring him round.
In the question given below, rearrange the parts of the sentence in the correct order, and choose the correct option. If all the parts are arranged in t...
Today India will win the match. I am certain of it.
(I) I would be certain
(II) Having won the match
(III) I am certain that
If only the routine criminal process is pursued with a universal sense of urgent , the expediency of special courts may not be needed at all.
...From the options given below, select the option which states the correct combination of correct sentences.
I) The rapid technological advancement...
Relevant for Exams:
