i had a test and i got a 55 can someone show me how to do these with the steps if possible(adsbygoogle = window.adsbygoogle || []).push({});

verify each of the folloring trigonomic identities

1) 2sin^2x - 1/sinx-cosx = sinx+cosx*

did my steps wrong

2) cot^2x-cos^2x = cos^2xcot^2x

didnt get an answer <no clue how to do

simplify

1) 1+tanx/sinx+cosx*

1+ sec^2x <dont know

2) (sinx - 1)(tanx+secx)

i got cot^2x+1 < dont know

can someone just explain how to do them and work at least one or two out for me so i can pass the quiz thanks alot the one swith the stars " * " are the ones i got the most points of any anyone who would work one of them out for me would be awsome

thanks in advance

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# Simpliflying trig identities please help quiz due tomorrow

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