If 3 cos A = 1 , then find the value of cosec A
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Answered by
5
3cosA = 1
cosA = 1/3
squirting both side
cos^2A = 1/9
sin^2A = 8/9
sinA = sqrt8/3
cosecA = 3/sqrt8
Answered by
27
⭐Solution ⭐
➡ given here
3cosA= 1
=> cosA = 1/3.
But,
✔SinA = √(1-cos²A)
= √(1-1/3²)
= √[(9-1)/9]
= √(8/9)
= 2/3√2
And ,
Cosec A = 1/SinA
=1/[ 2/3(√2)]
= 3/2√2
or,
= 3√2/2.
➡Hopes its help's u.
✔Marks Brainliest.
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