Verify the identity. cosine theta minus secant thetaequalsnegative sine theta tangent theta to verify the identity, start with the more complicated side and transform it to look like the other side. choose the correct transformations and transform the expression at each step.

Question

Mathematics

Nikhil Cameron

26 April, 23:51

Verify the identity. cosine theta minus secant thetaequalsnegative sine theta tangent theta to verify the identity, start with the more complicated side and transform it to look like the other side. choose the correct transformations and transform the expression at each step.

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Drake Arroyo · Answer 1

I will use x for theta.

-sinx tanx = - sinx (sinx / cosx) =

-sin²x / cosx = (cos²x - 1) / cosx = cosx - secx

and done. if there is some part you don't understand just ask!