Question

proof that, tan40⁰+ cot 40⁰= 2 sec10⁰​

Answer 1

Answer:

Here is your answer:_

Step-by-step explanation:

tan 40°+2 tan (90-80)

tan 40°+2 cot 80

tan 40°+2/tan 80

tan 40°+2/2 tan 40/1-tan square 40.

from the above equation 2/2 will be cutted.

Now, tan 40+1-tan square 40/tan 40

tan square 40+1-tan square 40/tan 40

Here tan square 40 will be cutted.

= 1/tan 40 .ANS.

HOPE IT WILL HELP YOU .

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