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If cos^4theta+alpha and sin^4theta+alpha...

If `cos^4theta+alpha` and `sin^4theta+alpha` are the roots of the equation `x^2+2b x+b=0` and `cos^2theta+beta,sin^2theta+beta` are the roots of the equation `x^2+4x+2=0,` then values of `b` are a. `2` b. `-1` c. `-2` d. `1`

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  2. If (x^2+a x+3)/(x^2+x+a) takes all real values for possible real value...

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  3. If cos^4theta+alpha and sin^4theta+alpha are the roots of the equation...

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  4. If the roots of the equation x^2+a x+b=0 are c and d , then roots of ...

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  5. If a ,b ,c in R a n d a b c<0 , then equation b c x^2+(2b+c-a)x+a...

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  6. For the quadratic equation x^2+2(a+1)x+9a-5=0, which of the following ...

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  7. Let P(x)=x^2+b x+cw h e r eba n dc are integer. If P(x) is a factor ...

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  8. If |a x^2+b x+c|lt=1 for all x in [0, 1], then a.|a|lt=8 b. |b|>8 ...

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  9. Let f(x)=a x^2+b x+cdot Consider the following diagram. Then Fig c<0...

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  10. If roots of a x^2+b x+c=0 are alphaa n dbetaa n d4a+2b+c &gt;0,4a ,-2...

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  11. The equation (x/(x+1))^2+(x/(x-1))^2=a(a-1) has a. Four real roots ...

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  12. Find the complete set of values of a such that (x^2-x)//(1-a x) attain...

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  13. If alpha,beta are roots of x^2+p x+1=0a n dgamma,delta are the roots o...

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  14. If he roots of the equation12 x^2-m x+5=0 are in the ratio 2:3 then fi...

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  15. If alphaa n dbeta are the roots of x^2-a(x-1)+b=0 then find the value ...

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  16. The equation formed by decreasing each root of ax^(2)+bx+c=0 by 1 is2x...

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  17. If the sum of the roots of an equation is 2 and the sum of their cubes...

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  18. If x is real and (x^2+2x+c)//(x^2+4x+3c) can take all real values, of ...

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  19. If alpha,beta are the roots of the equation 2x^2+2(a+b)x+a^2+b^2=0 , t...

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  20. If x^2+a x+bc=0 a n d x^2+b x+c a=0(a!=b) have a common root, then pro...

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