Answer:
cos (A+B+C)
Step-by-step explanation:
as A,B,C, are triangle we have A,B and C as 180
cost
Answer:
Step-by-step explanation:
The answer is 1.3
Answer: 2d
Step-by-step explanation:
You multiply the cost by the amount d, to find the total cost. Since it wants an expression, there is no equal sign.
You cannot simplify this but you can factorise it:
9x^6 (x^2 - 2)
Answer:
B
Step-by-step explanation:
