Question
Solve the equation
x∈/R
Alternative Form
No real solution
Evaluate
6402=6002×6002−2×600×600cos(x)
Simplify
More Steps

Evaluate
6002×6002−2×600×600cos(x)
Multiply the numbers
More Steps

Evaluate
6002×6002
Multiply the terms with the same base by adding their exponents
6002+2
Add the numbers
6004
6004−2×600×600cos(x)
Multiply the terms
6004−720000cos(x)
6402=6004−720000cos(x)
Swap the sides of the equation
6004−720000cos(x)=6402
Move the constant to the right-hand side and change its sign
−720000cos(x)=6402−6004
Change the signs on both sides of the equation
720000cos(x)=−6402+6004
Divide both sides
720000720000cos(x)=720000−6402+6004
Divide the numbers
cos(x)=720000−6402+6004
Divide the numbers
More Steps

Evaluate
720000−6402+6004
Rewrite the expression
7200003200(−128+32×11252)
Cancel out the common factor 3200
225−128+32×11252
cos(x)=225−128+32×11252
Solution
x∈/R
Alternative Form
No real solution
Show Solution
