Find the exact value of the trigonometric expression without the use of a calculator.sin 15° cos 105° + cos 15° sin 105°
A. - 
B. - 
C. 
D. 
Answer: D
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Evaluate the integral by using a substitution prior to integration by parts.
A. ln (10x + 10x2) + ln (x +1) + C B. ln (10x + 10x2) - 2x + C C. xln (10x + 10x2) + C D. xln (10x + 10x2) + ln (x +1) - 2x + C
Use the definition to find an expression for the instantaneous velocity of an object moving with rectilinear motion according to the given function relating s (in ft) and t (in s).s = 2t2 - 6t
A. 4t - 6 B. 2t - 6 C. 4t D. 4t2 - 6t
Describe the figure as completely as possible, using the properties simple, closed, polygonal curve, and polygon.
A. Closed, not simple B. Simple, not closed C. Polygon D. Simple, closed
Use the product-to-sum and sum-to-product identities to prove the stated identity.sin 12? + sin 14? = cot ?(cos 12? - cos 14?)
What will be an ideal response?