Math of wine ripen

 respectively, the real number and the following is satisfied. Real number a+b+c=?

1) 2           2) Not 2
Explanation)

a+b+c=1+0+2=3

Answer is 2)

Pyramid math of polar bear

What is positional number of one of ?

1) 9      2) Not 9

2005 is odd number, 2004 is even number. So  is odd number. Positional number of one of odd number power of 9 is 9.
Positional number of one of even number power of 9 is 1.

Therefore Positional number of one of is 9.

Answer is 1)

Earthworm mathematics that can be exchanged back and forth

Two matrix
(a, b is constant), value of a+b?

1) 3         2) Not 3

Earthworm appeared that can be exchanged back and forth!

Answer is 2)

It is question to the worm will turn.

Nail art Math

Did the nail art. The nail shape is graph of . is a parallelogram. The coordinates of point D?
1) D (-2, 4) 2) D (-2, 4) is not.

평행사변형: Parallelogram

Answer is No.1

Prtial fraction and swindler, a bodybuilder

The scene comes out prtial fraction

swindler changed this position

                                                

The nature of equality on the left side and right side and multiply that by using

Math like a bat

An angle formed by two chords with a common endpoint is called an inscribed angle.
 are all inscribed angles.

Barn swallow baby mouth shape math

SAT math concept explanation

The measure of an inscribed angle is one-half the measure of its intercepted arc.