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The number of values of yin[-2pi,2pi] sa...

The number of values of `yin[-2pi,2pi]` satisfying the equation `|sin2x|+|cos2x|=|siny|` is 3 (b) 4 (c) 5 (d) 6

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To solve the equation \( | \sin 2x | + | \cos 2x | = | \sin y | \) for the number of values of \( y \) in the interval \( [-2\pi, 2\pi] \), we can follow these steps: ### Step 1: Analyze the left-hand side The expression \( | \sin 2x | + | \cos 2x | \) can take values between 0 and \( \sqrt{2} \). This is because both \( | \sin 2x | \) and \( | \cos 2x | \) can reach a maximum of 1, and the maximum value of their sum occurs when \( \sin 2x \) and \( \cos 2x \) are both equal to \( \frac{1}{\sqrt{2}} \). **Hint:** Consider the maximum values of sine and cosine functions. ### Step 2: Determine the range of \( | \sin y | \) ...
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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
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  2. Prove: Sin(B+C−A) + Sin(C+A−B) + Sin(A+B−C) = 4SinASinBSinC.

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  3. The number of values of yin[-2pi,2pi] satisfying the equation |sin2x|+...

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  4. If alpha+beta=pi/2a n dbeta+gamma=alpha, then tanalpha equals

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  5. prove that a^2sin2B+b^2sin2A=4Delta

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  8. If in triangle A B C, \delta = a^2-(b-c)^2 , then find the value of ta...

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  9. The number of solutions of [sinx+cosx]=3+[-sinx]+[-cosx](w h e r e[] d...

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  10. If sintheta1-sintheta2=a a n d costheta1+costheta2=b , then (a)a^2+b...

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  11. If a , ba n dc are the side of a triangle, then the minimum value of (...

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  12. sinx+cosx=y^2-y+a has no value of x for any value of y if a belongs to...

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  13. If (cosx)/a=(cos(x+theta))/b=(cos(x+20))/c=(cos(x+3theta))/d then (a+...

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  14. Let P Q R be a triangle of area with a=2,b=7/2,and c=5/2, where a, b ...

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  15. If the inequality sin^2x+acosx+a^2>1+cosx holds for any x in R , then...

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  16. If cosalpha+cosbeta=0=sinalpha+sinbeta, then cos2alpha+cos2beta is e...

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  17. If the angle A ,Ba n dC of a triangle are in an arithmetic propression...

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  18. The equation sin^4x-2cos^2x+a^2=0 can be solved if (a) -sqrt(3)lt=alt=...

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  19. Value of (3+cot80^0cot20^0)/(cot80^0+cot20^0) is equal to (a)cot20^0...

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  20. Let A B C be a triangle such that /A C B=pi/6 and let a , b and c deno...

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