Question
Simplify the expression
cos(90)×dby123×e2grs
Evaluate
123÷(dbycos(90))gre×es
Multiply the numbers
123÷(cos(90)×dby)gre×es
Rewrite the expression
cos(90)×dby123×gre×es
Multiply the terms
More Steps

Evaluate
e×e
Multiply the terms with the same base by adding their exponents
e1+1
Add the numbers
e2
cos(90)×dby123×gre2s
Multiply the terms
cos(90)×dby123×g×re2s
Multiply the terms
cos(90)×dby123×gr×e2s
Multiply the terms
More Steps

Multiply the terms
cos(90)×dby123×gr×e2
Multiply the terms
cos(90)×dby123×gre2
Multiply the terms
cos(90)×dby123×e2gr
cos(90)×dby123×e2gr×s
Solution
cos(90)×dby123×e2grs
Show Solution

Find the excluded values
d=0,b=0,y=0
Evaluate
123÷(dbycos(90))gre×es
To find the excluded values,set the denominators equal to 0
dbycos(90)=0
Multiply the numbers
cos(90)×dby=0
Evaluate
dby=0
Separate the equation into 3 possible cases
d=0b=0y=0
Solution
d=0,b=0,y=0
Show Solution
