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# C2 maths help watch

1. prove that [(sin x)/ (1 +cos x)] +[(1 + cos x) /sin x ] = 2/sin x
2. (Original post by man111111)
prove that [(sin x)/ (1 +cos x)] +[(1 + cos x) /sin x ] = 2/sin x
What have you tried so far? Try getting them under a common denominator.
3. (Original post by Zacken)
What have you tried so far? Try getting them under a common denominator.
I don't know how to make the denominators the same
4. (Original post by man111111)
I don't know how to make the denominators the same
5. Multiply the by and use the identity
6. (Original post by man111111)
prove that [(sin x)/ (1 +cos x)] +[(1 + cos x) /sin x ] = 2/sin x

Try putting it over a common denominator of

Then use and cancel.
7. I see. I was correcting the mistake I made in the picture I attached. Thanks for both solutions

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8. Hi, it is against the maths forum rules to post full solutions so all full solutions have been removed from this thread.

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