Given : 4 cot A = 3, find,
1.sin A
2. sec A
3.cosec²A - cot²A.
Answers
Answered by
11
Step-by-step explanation:
4 cot A = 3
cot A = 3/4
base / perpendicular = 3/4
base = 3
perpendicular = 4
Hence,
hypotenuse = 5
sin A= perpendicular / hypotenuse
sin A =4/5
sec A = hypotenuse/ base
sec A = 5/3
by identity of trigo...
cosec^2 - cot ^2 = 1
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Answered by
0
(1) 4/5
(2) 5/3
(3) -81/400
Step-by-step explanation:
4 cot A = 3
cot A =
By using pythagoras theorem
(1) sin A =
(2) sec A =
(3) A - A
After L.C.M
we get,
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