Home
Class 8
MATHS
E v a l u a t e\ (3. 2 x^6y^3)xx(2. 1 x^...

`E v a l u a t e\ (3. 2 x^6y^3)xx(2. 1 x^2y^2)w h e n\ x=1\ a n d\ y=0. 5`

Text Solution

Verified by Experts

`(3. 2 x^6y^3)xx(2. 1 x^2y^2)`
`(3.2xx2.1)xxx^(6+2)xxy^(3+2)`
`= 6.72x^8y^5`
When x=1,y=0.5, then
`6.72xx(1^8)xx(0.5)^5`
`6.72xx0.031`
`= 0.208`
Promotional Banner

Topper's Solved these Questions

  • COMPOUND INTEREST

    RD SHARMA|Exercise All Questions|129 Videos

Similar Questions

Explore conceptually related problems

2^(^^)x+2^(^^)y=2^(^^)(x+y),t h e n

The solution y(x) of the differential equation (d^(2)y)/(dx^(2))=sin3x+e^(x)+x^(2) when y_(1)(0)=1 and y(0)=0 is

If x=5a n dy=-2t h e nx-2y=9. The contrapositive of this statement is A.If x-2y=9t h e nx=5a n dy=-2 B. If x-2y!=9t h e nx!=5a n dy!=-2 C. If x-2y!=9t h e nx!=5ory!=-2 D. If x-2y!=9t h e ne i t h e rx!=5a n dy!=-2

If sqrt(1-x^6)+sqrt(1-y^6)=a(x^3-y^3),p rov et h a t(dy)/(dx)=(x^2)/(y^2)sqrt((1-y^6)/(1-x^6,) w h e r e-1x,1a n d-1

y = e ^ (xx) x tan ^ (- 1) x, showthat (1 + x ^ (2)) y_ (2) -2 (1-x + x ^ (2)) y_ (1) + (1 -x ^ (2)) y = 0

Let A and B be two sets such that n(A)=3 a n d n(B)=2. if (x ,1), (y ,2), (z ,1)a r e in AxxB , find A a n d B , w h e r e x , y , z are distinct elements.

Two straight lines u=0a n dv=0 pass through the origin and the angle between them is tan^(-1)(7/9) . If the ratio of the slope of v=0 and u=0 is 9/2 , then their equations are (a) y+3x=0a n d3y+2x=0 (b)2y+3x=0a n d3y+2x=0 (c)2y=3xa n d3y=x (d) y=3xa n d3y=2x

If y=e^(x) , then (d^(2)y)/(dx^(2)) = e^(x) .

If e_1a n d e_2 are respectively the eccentricities of the ellipse (x^2)/(18)+(y^2)/4=1 and the hyperbola (x^2)/9-(y^2)/4=1, then the relation between e_1a n d e_2 is a.2e_1 ^2+e_2 ^2=3 b. e_1 ^2+2e_2^ 2=3 c. 2e_1^ 2+e_2 ^2=3 d. e_1 ^2+3e_2 ^2=2

RD SHARMA-ALGEBRAIC EXPRESSIONS AND IDENTITIES-All Questions
  1. Express each of the products as a monomials and verify the result in...

    Text Solution

    |

  2. Write down the product of \ 8x^2y^6a n d-20 x ydot Verify the produc...

    Text Solution

    |

  3. E v a l u a t e\ (3. 2 x^6y^3)xx(2. 1 x^2y^2)w h e n\ x=1\ a n d\ y=0....

    Text Solution

    |

  4. Find the value of (5x^6)xx\ (-1. 5 x^2y^3)xx(-12 x y^2)\ when\ x=1, y...

    Text Solution

    |

  5. E v a l u a t e\ (2. 3 a^5b^2)xx(1. 2 a^2b^2)w h e n\ a=1\ a n d\ b=0....

    Text Solution

    |

  6. Evaluate (-8x^2y^6)xx(\ -20 x y) for \ x=2. 5\ a n d\ y=1.

    Text Solution

    |

  7. Express each of the products as a monomials and verify the result fo...

    Text Solution

    |

  8. find the product of following (2/5a^2b)xx\ (-15 b^2a c)xx\ (-1/2c^2)

    Text Solution

    |

  9. Express each of the products as a monomials (-4/7a^2b)xx(-2/3b^2c)xx...

    Text Solution

    |

  10. Express each of the products as a monomials (4/9a b c^3)xx(-(27)/5a^...

    Text Solution

    |

  11. Evaluate each of the that when x=2, y=-1. (2x y)xx((x^2y)/4)xx(x^2)xx...

    Text Solution

    |

  12. Evaluate each of the that when x=2, y=-1. (3/5x^2y)xx(-(15)/4x y^2)xx...

    Text Solution

    |

  13. Multiply: 2x by (3x+5y)

    Text Solution

    |

  14. Multiply: (7x y+5y) by 3x y

    Text Solution

    |

  15. Multiply: -(3a b^2)/5\ by ((2a)/3-b)

    Text Solution

    |

  16. Find the product of 7/2s^2t\ a n d\ s+tdot Verify the result for s=1/2...

    Text Solution

    |

  17. Multiply: (3x-4/5y^2x)b y1/2x ydot

    Text Solution

    |

  18. Find the following products: (i) 100 x(0. 01 x^4-0. 01 x^2) (ii) 121....

    Text Solution

    |

  19. Determine each of the products and find the value of each for x=2,\...

    Text Solution

    |

  20. Determine each of the products and find the value of each for x=2,\ ...

    Text Solution

    |