If coax is expressed in the form of acos(4x)+bcos(

Question

If coax is expressed in the form of acos(4x)+bcos(2x)+c, where a,b and c are constant then the value of (a+b+c), is equal to(A)1. (B) 11/8. (C) 7/4. (D)2.

Saurabh Koranglekar · Accepted Answer

Dear studentPut x = 0Cos x = 1Cos 4 x = 1Cos 2x = 1a+b+c = 1Regards

Trigonometry> If coax is expressed in the form of acos(...

If coax is expressed in the form of acos(4x)+bcos(2x)+c, where a,b and c are constant then the value of (a+b+c), is equal to(A)1. (B) 11/8. (C) 7/4. (D)2.

Keertesh , 7 Years ago

Saurabh Koranglekar

LIVE ONLINE CLASSES

In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.

trigonometry

Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720

trigonometry

To prove : Cosec(45 degree - A)Cosec(45 degree + A) = 2SecA

trigonometry

cos^2 13ºcos^2 47º+cos^2 73º =? …..................

trigonometry

Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)

trigonometry

Trigonometry> If coax is expressed in the form of acos(...

If coax is expressed in the form of acos(4x)+bcos(2x)+c, where a,b and c are constant then the value of (a+b+c), is equal to(A)1. (B) 11/8. (C) 7/4. (D)2.

Keertesh , 7 Years ago

Saurabh Koranglekar

LIVE ONLINE CLASSES

Other Related Questions on trigonometry

In ABC, if cot A+cot B+cot C = cosecA cosecB cosecC, then prove that ABC is right angle triangle.

trigonometry

Find the general solution of equation tan3∂=cot2∂For all angles between -720 and +720

trigonometry

To prove : Cosec(45 degree - A)Cosec(45 degree + A) = 2SecA

trigonometry

cos^2 13ºcos^2 47º+cos^2 73º =? …..................

trigonometry

Derive a formula for the area of the triangle, given b, A, B, and C. That is, derive the formula: (b^2sinAsinC)/(2sinB)

trigonometry

Find the general solution of equation tan3∂=cot2∂
For all angles between -720 and +720