1. (1+cos x)/(sin x)+(sin x)/(1+cos x)=2csc x
given that: sin a=4/5 and tan b= -1
given that: cos a=4/5 and tan b= -1
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2 more to go lol.
Originally Posted by Chris69 2 more to go lol. How about you tell us how far you have gotten. Then we can assist you better.
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