
In Exercises 1-13, verify each identity.

To prove: The expression
Explanation of Solution
Given information:
Formula used:
Proof:
We have the expression in the left side
And the expression can be further simplified by multiplying and dividing the expression by
As we know the Pythagorean theory
Therefore, left side is equals to the right side.
Want to see more full solutions like this?
Chapter 5 Solutions
Precalculus (6th Edition)
- please dont use chat gpt i need to underarrow_forwardChris Lynch plans to invest $200 into a money market account. Find the interest rate that is needed for the money to grow to $1,800 in 12 years if the interest is compounded quarterly. The rate is %. (Round to the nearest percent.)arrow_forwardFind the interest earned on $10,000 invested for 6 years at 6% interest compounded as follows. a. Annually b. Semiannually (twice a year) c. Quarterly d. Monthly e. Continuouslyarrow_forward
- 6.9x y= 100-x a. Find the cost of removing each percent of pollutants: 50%; 70%; 80%; 90%; 95%; 98%; 99%. 50% y = 70% y = 80% y = 90% YF 95% y = 98% y= 99% V =arrow_forwardThe cost per ton, y, to build an oil tanker of x thousand deadweight tons was approximated by 215,000 C(x)= x+485 C(25) C(100) C(300) =1 C(50) = = C(200) = C(400) =arrow_forwardi need help pleasearrow_forward
- Use the two methods "real number solution space basis" and "complex solution space basis" respectively to solve y''+ 1/4y = 0, y(π) = 1, y'(π) = -1arrow_forwardExplain the key points of Theroem 9.3.6arrow_forwardProve that if a and b are both positive, then y(x)⭢0 as x⭢∞ for all sloutions y of the questionarrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning
