Who wants to help me do a question, help me do a question?

Just use the cosine theorem to find the be=root number 153

o is the center of gravity of abc, so bo oe = 2, so oe = the root number of 3 points 153

CD is 8.

You haven't already asked this question.

cd=8, oe=root17The process is complicated. Ask me if you need to.

ab=ac isosceles triangle ad, perpendicular bc so d is bc emphasis, so cd=8

o is the center of gravity of the triangle, so oe = 1/3 be be = ...Depressed, I haven't started writing for a few months, and I can't do anything.

In Figure A, because of the action of the constant voltage source, the voltage difference between A and B is clamped by the constant voltage source at 10V. That is, the voltage difference between the two ends of the 2 resistor is always 10V. So: i = 10v 2 = 5a

Since the internal resistance of the constant current source is infinity orange, its output is constant at 5A. Because the constant current source is connected in series throughout the circuit, i can only be equal to the current of the constant current source. i.e. i = 5a

Dear, I can't give you an answer if there is no question, I hope you will send the question to answer for you after you see it.

The long change of oa and ob is the two-nucleated plum root of the equation x 2-7x + 12 = 0 and oa > ob

x 2-7x+12=(x-4)(x-3)=0, i.e. oa=4, ob=3

ab=5=cd

The existence of point F on the ab of the town of False Hall makes it established.

AB straight line: y 4-x 3 = 1

Let f(x,4x 3+4).

AC midpoint h(3, 2, 2).

Then there must be MH bisecting AC

Then k(mh)*k(ac)=-1

Substitution: x=-75 14<-3 does not belong to the range of the abscissa of a and b.

Therefore it does not exist.

Looking for answers ?

A basket of eggs: Take them one by one, just finished.

2 2 take, 1 left.

Take 3 of 3 and take it just over.

4 4 take, 1 left.

5 5 take, 1 left.

6 6 take, 3 left.

Take 7 7 and take it just right.

8 8 take, 1 left.

Take 9 of 9 and take it just over.

Q: How many eggs are in the basket?

1 1 is just finished, 3 3 is just finished, 7 7 is just finished, 9 9 is just finished, and the number of eggs in the box is a multiple of 4*9=63.

2 2 take 1 left, 5 5 take 1 left, and the single digit is 1.

So find 37 ...... from the following numbers

So the minimum number is 441.

Is it high school or college?

Solution: lim(x wild void 0)(1-a x) (x)=lim(x 0)[(1-a x) (x a)] a, and "-a x" as a whole, according to the basic limit formula, lim(x 0)[(1-a ode to hidden burning x) (x a)]=e, e a=e 2, with a=2. FYI.

Note that the result of this problem is exactly what it is; In some cases, the result of multiplication and division with 2 digits after the decimal is often more than 2 digits, and only 2 digits can be reserved for the final value, such as ==

= Calculate from left to right, no trick to press the calculator directly.

It's a computation, isn't it?

Popular science books:

4500 volumes.

Storybooks:

4500 1 3 = 1500 volumes.

This is simple, that is, the remaining three-quarters is 6000 copies, 3:1 is three of the four copies and one copy, one is 6000 divided by 4 equals 1500, then three points is 4500, the answer is: 4500 and 1500

If the story book is x, then the popular science book is 3x

x+3x=800-800*1/4

4x=600

x=150 storybook: 150

Popular science: 600-150=450

Problem solving skills, 3:1,1 set to x can simplify the calculation process].