The value of $ an^2 heta - \frac{1}{\cos heta} imes \sec heta$ is:

Question

The value of $	an^2 	heta - \frac{1}{\cos 	heta} 	imes \sec 	heta$ is:

Accepted Answer

Step 1: $	an^2	heta - \frac{1}{\cos	heta} 	imes \sec	heta = 	an^2	heta - \sec	heta 	imes \sec	heta = 	an^2	heta - \sec^2	heta = -(\sec^2	heta - 	an^2	heta) = -1$

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