Question

(b) Given sin A =24/25

- Find all other trigonometrical ratios for angle A.​

Answer 1

Answer:

In △ABC, ∠B=90

o

, ∠C=θ

∴AB

2

=AC

2

−BC

2

........ (By Pythagoras theorem)

∴x

2

=25

2

−24

2

=625−576=49

∴x=

49

=7

∴AB=7

Now, we can write other trigonometric ratios as follows

sinθ=

Hypotenuse

Opposite side

=

25

7

tanθ=

Adjacent side

Opposite side

=

24

7

cscθ=

Opposite side

Hypotenuse

=

7

25

secθ=

Adjacent side

Hypotenuse

=

24

25

cotθ=

Opposite side

Adjacent side

=

7

24

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Answer 2

Answer:

all other trigonometrical ratios

cos A 7/25

tanA 24/7

cotA 7/24

sec 25/7

Cosec 25/24