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 = `(8/17)^2` So sin 62° = 8/17 ----(2) Hence tan 62° = sin62°/cos62° = `(8/17)/(15/17)` = `8/15` ` ` ` ` ` ` ` ` ` ` ` `
What is object of UPS?
How many letters are there between the first letter of second word from the left end and second letter of second word from the right end in alphabetical...
How many letters are there in the given series which are immediately followed by a number?
L 6 7 Z @ U 5 % 6 L M @ N P L 9 @ Y # 5 F 6
What is the sum of all the even numbers in the given series?
- How many such consonants are there in the above arrangement each of which is immediately followed by a consonant and immediately preceded by a symbol?
Select the combination of letter that when sequentially placed in the blanks of the given series will complete the series.
J _ L _ N J K _ M _ _ ...
Study the arrangement of number and letter carefully and answer the following questions.
C 9 I B 5 W E 8 V 7 K N X 8 9 D 6 P 9 A 6 O J S B 6 ...
Which of the following is not a peripheral unit?
Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
l m _ o _ q r _ t _ m...
In which of the following network topology, all devices on a network are connected to a single continuous cable?
Relevant for Exams:
