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[" If "y=sec^(2)theta+cos^(2)theta,theta...

[" If "y=sec^(2)theta+cos^(2)theta,theta!=0," then "-],[[" (A) "y=0," (B) "y<=2," (C) "y>=-2," (D) "y>2]]

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If y = sec^2 theta+ cos^2 theta, theta ne 0 , then :

if y=cos^(2)theta+sec^(2)theta then

If y=sec^2theta+cos^2theta,\ theta!=0, then- a. y=0 b. ylt=2 c. ygeq-2 d. y > 2.

If y=sec^2theta+cos^2theta,\ theta!=0, then- y=0 b. ylt=2 c. ygeq-2 d. y > 2.

sec^(2)theta+csc^(2)theta=sec^(2)theta xx cos e^(2)theta

(1-cos^2theta)sec^2 theta= tan^2 theta

Proove: (sin^(2)theta)/(cos theta)+cos theta=sec theta