Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Write the function without radicals by using fractional exponents.y = 
+ 
A. y = (2x)2/3 + (8x)3/2 B. y = (10x)13/6 C. y = (2x)2/3 + (8x)3 D. y = (2x)3/2 + (8x)2/3
Mathematics
Find the given Sn for the arithmetic series.211 + 180 + 149 + 118 + . . . . Find S16.
A. -2032 B. -344 C. -688 D. -592
Mathematics
Solve.log5 (x2) = 4
A. 625
B. 25, -25
C. 2
, -2
D. 32
Mathematics
Solve the rational inequality. Express the solution in interval notation.
< 3
A. (-?, -9) ? 
B. (-?, -9) ? (9, ?)
C. 
D. 
? (9, ?)
Mathematics