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Sort by ### Let's study "Mathematics" with each other! (6)

1.

If:

f(x)=  x  , for x≤1       &      x^2  ,for  x>1

Then,

What is the inverse of f(x)?

1-    x  , for x≤1       &      √x  ,for  x>1

2-    -x  , for x≤1       &      -√x  ,for  x>1

3-    1/x  , for x≤1       &      1/x^2  ,for  x>1

4-    -1/x  , for x≤ ### Let's study "Mathematics" with each other! (7)

1.

sin-1 x + cos-1 x=?

1-    π/4

2-    π

3-    π/2

4-

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2.

If,

-π/2 < Ө < π/2

Sinhx= tgӨ

Then,

Coshx=?

1-    cos Ө

2-    csc Ө

3-    sec Ө

4-    sin Ө

*******       *******       *** ### Let's study "Mathematics" with each other! (2)

1-If we have:

[x] ≤ (x/2)

Then which one is right?

1-      {x: x>1}

2-      {x: x<1}

3-      {x: -1<x<1}

4-      {x: -2<x<0}

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2-Which one is odd?

1-      Ln {x+(1+x2)}

2-      e^sinx

3 ### Let's study "Mathematics" with each other!

Hi dear friends!

How are you?

Are you interested in "Math"?!

So…

Let's study it together!

1-      If  we have:

1< (2|x|-1)/|x|+1 < 2

Then;

Which one is right?

1)      x > 1/2

2)      -2 < x < 2

3)      x < -(1/3) or x > (1/3)

4 ### Let's study "Mathematics" with each other! (4)

1-      If we have:

f(x)= x^2+2x

g(x)=x^3

Then, how many answers can (gof)(x)=(fog)(x) have?

1-      1

2-      2

3-      3

4-      6

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2-      If we have:

f(x)=2[x]+2[-x]

Then, what is