[" The solution of the equation "cos^(2)...

[" The solution of the equation "cos^(2)theta+sin theta+1=0," lies in "],[" the interval "],[[" (a) "(-pi/4,pi/4)," (b) "(pi/4,3 pi/4)],[" (c) "(3 pi/4,5 pi/4)," (d) "(5 pi/4,7 pi/4)]],[" If "tan theta+sec theta=sqrt(3),0

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The solution o the equation cos^(2)theta+s int h eta+1=0 lies in the interval (-pi/4,pi/4) b.(pi/4,3 pi/4)c(3 pi/4,5 pi/4)d.(5 pi/4,7 pi/4)

A solution of the equation cos^(2)theta+s int h eta+1=0 lies in the interval (-pi/4,pi/4) b.(pi/4,3 pi/4)c(3 pi/4,5 pi/4)d*(5 pi/4,7 pi/4)

A solution of the equation cos^2theta+sintheta+1=0 lies in the interval a. (-pi//4,pi//4) b. (pi//4,3pi//4) c. (3pi//4,5pi//4) d. (5pi//4,7pi//4)

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denote the positive solution of the equation 3+3costheta=2sin^2thetadot The value of theta_3+theta_7 is 3 pi (b) 4 pi (c) 5 pi (d) 6 pi