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The number of distinct real roots of |(c...

The number of distinct real roots of `|(cosecx,secx,secx),(secx, cosecx,secx),(secx,secx ,cose cx)|=0` lies in the interval `-pi/4lt=xlt=pi/4` is 1 (b) 2 (c) 3 (d) 0

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The number of distinct real roots of |{:(cosec x, secx, secx), (secx, cosecx, secx), (secx, secx, cosecx):}|=0 lies in the interval -pi/4lt=xlt=pi/4 is (a) 1 (b) 2 (c) 3 (d) 0

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RD SHARMA ENGLISH-DETERMINANTS-All Questions
  1. Determine the values of x for which the matrix A=[(x+1,-3 ,4),(-5,x+2,...

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  2. The value of the determinant |[x, x+y, x+2y], [x+2y, x,x+y],[x+y, x+2y...

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  3. The number of distinct real roots of |(cosecx,secx,secx),(secx, cosecx...

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  4. Let f(x)=|[cosx , x , x] , [2sinx , x , 2x] , [sinx , x , x]|, then ...

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  6. Solve the following system of equations using Cramers rule. 5x-7y+z=1...

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  7. Let A=|(1,sintheta,1),(-sintheta,1,sintheta),(-1,-sintheta,1)|, where ...

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  9. Prove the identity: |[b^2+c^2,ab, ac],[ba,c^2+a^2,bc],[ca, cb ,a^2+b^2...

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  10. |((a^2+b^2)/c,c,c),(a,(b^2+c^2)/a,a),(b,b,(a^2+c^2)/b)| equal to : (A)...

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  11. Prove that identities: |[-bc,b^2+bc,c^2+bc],[a^2+ac,-ac,c^2+ac],[a^2+...

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  12. Without expanding, prove that |a b c x y z p q r|=|x y z p q r a b c|=...

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  13. If |[p, b, c],[ a, q, c],[ a, b, r]|=0, find the value of p/(p-a)+q/(...

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  14. Find the equation of the line joining A(1,3)a n dB(0,0) using determin...

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  15. If A(x1, y1),B(x2, y2) and C(x3,y3) are vertices of an equilateral ...

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  16. If f(x)=|0x-a x-b x+a0x-c x+b x+c0|,t h e n f(x)=0 (b) f(b)=0 (c) f...

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  17. Prove the identities: |[a^2,a^2-(b-c)^2,b c], [b^2,b^2-(c-a)^2,c a],[...

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  18. Prove the identities: |[z, x, y],[ z^2,x^2,y^2],[z^4,x^4,y^4]|=|[x,...

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  19. Without expanding, show that the value of each of the determinants is ...

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  20. Without expanding, show that the value of each of the determinants is ...

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