Упростите- 1) 1/1+cos a + 1/1-cos a 2) ctg2B (cos2B - 1)+1 3) tgB+1/ 1 +ctgB

Question

Упростите- 1) 1/1+cos a + 1/1-cos a 2) ctg2B (cos2B - 1)+1 3) tgB+1/ 1 +ctgB

Comments

I solved 1-3

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Show me please

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but number 2 is incomplete and i have to solve 2 to

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can you please check your question again?

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okay

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ctg^2B x (cos^2B-1)+1

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B- this is beta

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are you sure

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yes

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ok,you can check the answers now

Answer 1

I hope this helps you

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Comments

THANK YOU

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you're welcome and please write your questions correctly :)