Prove that the equation is an identity.
= cos x
What will be an ideal response?
= 
= 
Pythagorean identity
= sin x ÷ 
= sin x ? 
= cos x
You might also like to view...
Work the application. Write a legend and an equation. Solve the equation and answer in a complete sentence.The billing department in a large company had $15,671 in its annual supplies budget. So far this year the department has purchased a computer system for $4851, new furniture for $2208, and various office supplies for $575. Rina's job is to update the department's budget. How much is left in the department's supplies budget after these purchases?
A. Let b = the amount of money left in the supplies budget. $4851 + $2208 + $575 = $15,671 + b There is $7634 left in the supplies budget. B. Let b = the amount of money left in the supplies budget. $4851 + $2208 + $575 + b = $15,671 There is $8612 left in the supplies budget. C. Let b = the amount of money left in the supplies budget. $4851 + $2208 + $575 + b = $15,671 There is $8037 left in the supplies budget. D. Let b = the amount of money left in the supplies budget. $4851 + $2208 + $575 = $15,671 + b There is $10,245 left in the supplies budget.
Find the product.(x + 3)2
A. x + 9 B. 9x2 + 6x + 9 C. x2 + 9 D. x2 + 6x + 9
Round the number as indicated.3649 to the nearest thousand
A. 5000 B. 4100 C. 4000 D. 3890
Supply the missing numbers. fraction decimal percent0.8
A. 
80%
B. 
8%
C. 
8%
D. 
80%