Math, asked by gangwardeepak7878, 4 months ago

Q-10 If sin A:cos A = 12:13, find tan A, sin A and cos A​

Answers

Answered by Anamikamini
0

Step-by-step explanation:

cosA=

13

12

---- ( 1 )

We know,

sin

2

A+cos

2

A=1

⇒ sin

2

A+(

13

12

)

2

=1 [ From ( 1 ) ]

⇒ sin

2

A+

169

144

=1

⇒ sin

2

A=1−

169

144

⇒ sin

2

A=

169

169−144

⇒ sin

2

A=

169

25

⇒ sinA=

13

5

----- ( 2 )

Now,

tanA=

cosA

sinA

⇒ tanA=

13

12

13

5

[ From ( 1 ) and ( 2 ) ]

⇒ tanA=

12

5

∴ sinA=

13

5

=0.385

∴ tanA=

12

5

=0.417

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