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Show That 2(sin^6x+cos^6x)-3(sin^4x+cos^...

Show That `2(sin^6x+cos^6x)-3(sin^4x+cos^4x)+1=0`

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To show that \( 2(\sin^6 x + \cos^6 x) - 3(\sin^4 x + \cos^4 x) + 1 = 0 \), we will start with the left-hand side and simplify it step by step. ### Step-by-Step Solution: 1. **Start with the given expression:** \[ LHS = 2(\sin^6 x + \cos^6 x) - 3(\sin^4 x + \cos^4 x) + 1 \] ...
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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. If in A B C , side a , b , c are in A.P. then B > 60^0 (b) B<60^0 B...

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  2. The value of sin^3 10^0+sin^3 50^0-sin^3 70^0 is equal to (a)-3/2 ...

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  3. Show That 2(sin^6x+cos^6x)-3(sin^4x+cos^4x)+1=0

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  4. If the hypotenuse of a right-angled triangle is four times the length ...

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  5. The number of roots of (1-tantheta)(1+sin2theta)=1+tanthetafortheta in...

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  6. If cosx=tany ,cosy=tanz ,cosz=tanx , then the value of sinx is (a)2...

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  7. If tan theta+sin theta=m and tan theta-sin theta=n , then (a) m^2-n^2=...

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  8. If one side of a triangle is double the other, and the angles on op...

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  9. Number of roots of the equation (3+cos"x")^2=4-2sin^8x ,x in [0,5pi]a ...

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  10. The side of a triangle inscribed in a given circle subtends angles alp...

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  11. If sin2theta=cos3theta"and"theta is an acute angle, then sintheta eq...

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  12. With usual notations, in triangle A B C ,acos(B-C)+bcos(C-A)+c"cos"(A-...

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  13. 3(sintheta-costheta)^4+6(sintheta+costheta)^2+4(sin^6theta+cos^6theta)...

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  14. If tantheta=sqrt n, where n in N, >= 2, then sec2theta is always (a)...

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  15. The value of cosycos(pi/2-x)-cos(pi/2-y)cosx+sinycos(pi/2-x)+cosxsin(p...

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  16. If P is a point on the altitude AD of the triangle ABC such the /C B P...

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  17. If theta1 and theta2 are two values lying in [0,2pi] for which t a n...

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  18. If tantheta=-4/3,t h e nsintheta is -4/5b u tnot4/5 (b) -4/5or4/5 ...

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  19. Let ABC be a triangle with /A=45^0dot Let P be a point on side BC with...

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  20. If costheta-sintheta=1/5, where 0 lt theta lt pi/4, then Column I Colu...

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