Math, asked by santhosh410319m, 1 month ago

13. The value of cosec (70° + 0 ) - sec (20° - 0)+tan (65° + 0 )-cot (25° -0)
is
(a)0
(b)1
(c) 2
(d) 3​

Answers

Answered by soniakatariask
2

Step-by-step explanation:

cosec70-sec20+tan65-cot25

tan(90-x)=cotx

cosec(90-x)=secx

cosec70=cosec(90-20)=sec20

tan65=tan(90-25)=cot25

on replacing

sec20-sec20+cot25-cot25=0

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Answered by nehasharmaa1235
0

Answer:

0

Step-by-step explanation:

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