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If a(1), a(2), a(3), ………, a(n)….. are in...

If `a_(1), a_(2), a_(3), ………, a_(n)`….. are in G.P., then the determinant `Delta = ` `|(""loga_(n)" "loga_(n + 1)" "log_(n + 2)""),(""loga_(n + 3)" "loga_(n + 4)" "log_(n + 5)""),(""loga_(n + 6)" "loga_(n + 7)" "log_(n + 8)"")|` is equal to

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CENGAGE-DETERMINANTS-All Questions
  1. If a >0 and discriminant of a x^2+2b x+c is negative, then |[a,b,ax+...

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  2. If |(a-b-c,2a,2a),(2b,b-c-a,2b),(2c,2c,c-a-b)|=(a+b+c) xx(x + a + b...

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  3. If a(1), a(2), a(3), ………, a(n)….. are in G.P., then the determinant De...

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  4. By using properties of determinants , show that : {:[( a^(2) + 1, a...

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  5. Let vec ar=xr hat i+yr hat j+zr hat k ,r=1,2,3 be three mutually per...

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  6. The number of distinct real roots of |[sinx,cosx,cosx],[cosx,sinx,cosx...

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  7. Let a ,b ,c be real numbers with a^2+b^2+c^2=1. Show that the eq...

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  8. If lines p x+q y+r=0,q x+r y+p=0a n dr x+p y+q=0 are concurrent, th...

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  9. If plambda^4+qlambda^3+rlambda^2+slambda+t=|[lambda^2+3lambda, lambda-...

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  10. Find the value of lambda if 2x^2+7x y+3y^2+8x+14 t+lambda=0 represents...

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  11. If x ,y ,z are different from zero and "Delta"=|[a, b-y ,c-z],[ a-x, ...

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  12. If A , B ,C are angles of a triangles, then the value of |[e^(2i A),...

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  13. For the equation |[1,x,x^2],[x^2, 1,x],[x,x^2, 1]|=0, There are exa...

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  14. Let "Delta"r=|r-1n6(r-1)^2 2n^2 4n-2(r-1)^2 3n^3 3n^2-3n|dot Show that...

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  15. Let m be a positive integer and Deltar=|[2r-1,.^mCr,1],[m^2-1,2^m,m+1]...

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  16. Prove that |1+a 1 1 1 1 1+b 1 1 1 1 1+c ...

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  17. Find the area of a triangle having vertices A(3,2),B(11 ,8), and C(8,1...

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  18. If Dk=1nn2k n^2+n+1n^2+n2k-1n^2n^2+n+1a n dsum(k=1)^n Dk=56. then n eq...

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  19. If a!=p ,b!=q ,c!=ra n d|p b c a q c a b r|=0, then find the value of ...

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  20. If x1,x2,x3 as well as y1, y2, y3 are in G.P. with same common rati...

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