Question

cot A=12/5 then the value of (sin A+cos A) *cosec A​

Answer 1

Answer:

Refer to the attachment

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Answer 2

Answer:

Correct option is

B

5

17

cotA=

5

12

=

P

B

B=12 and P=5

H

2

=B

2

+P

2

⇒H=

B

2

+p

2

⇒H=

12

2

+5

2

⇒H=

144+25

⇒H=

169

=13

Then sinA=

H

P

=

13

5

cosA=

H

B

=

13

12

cosecA=

P

H

=

5

13

∴(sinA+cosA)×cosecA=(

13

5

+

13

12

)×

5

13

⇒

13

17

×

5

13

=

5

17

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