Find the sum.+15 + (-48)
A. -63
B. 63
C. -33
D. -64
Answer: C
Mathematics
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Find the solution of the differential equation , without solving it.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Complete the sentence so the result is an identity. Let x be any real number. =
A. sec x B. tan x C. csc x D. cot x
Mathematics
For what values of x does the series converge absolutely?
A. x >
B. - < x <
C. 0 < x <
D. None
Mathematics
Solve the equation.(6.2)2 = (13.3)2 + (15.5)2 - 2(13.3)(15.5)cos ? for 0° < ? < 90°
A. 58.1 B. 25.3° C. 21.3° D. 23.3°
Mathematics