Current location - Training Enrollment Network - Mathematics courses - Help me with five math problems. I'll add it later. Write less process. But don't answer directly. The correct rate may not be too high.
Help me with five math problems. I'll add it later. Write less process. But don't answer directly. The correct rate may not be too high.
1. If (m+ 1 power of a× n+2 power of b )× (2N+ 1 power of a× 2m power of b) = 5 power of a× 3 power of b, find m-n.

Solution: a (m+1+2n+1) * b (n+2+2m) = a 5 * b 3.

∴m+2n+2=5 ( 1)

2m+n+2=3 (2)

(2)-( 1) De: m-n=-2

2. If the m power of 5 =2 and the n power of 2 =4, find 2M-4+3 of 5.

This question is not clear, is it wrong?

3. The rational numbers x and y satisfy the absolute value of X+Y-5+square (x-y+ 1) =0. Find the square of (the square of xy) × (the square of x× the square of y).

∵|x+y-5| +(x-y+ 1)? =0

∴x+y=5

x-y=- 1

∴x=2,y=3

(the square of xy) the square of x (the square of x and the square of x y)

=(xy? )? *(x? *y? )?

=x? y^4*x^4*y^4

=x^6*y^8

When x=2 and y=3.

The original formula = 26 * 38 = 64 * 6561= 419904.

4\ From the meaning of the question: A=3

"3 A-3+2 3-A -B+300" equals?

5、3^(555)=(3^5)^ 1 1 1=243^ 1 1 1

4^(444)=(4^4)^ 1 1 1=256^ 1 1 1

5^(333)=(5^3)^ 1 1= 125^ 1 1 1

∵ 125 & lt; 243 & lt256

∴5^(333)<; 3^(555)<; 4^(444)

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