Establish the identity.sin(x + y) - sin(x - y) = 2 cos x sin y
What will be an ideal response?
sin (x + y) - sin (x - y) = sin x cos y + cos x sin y - sin x cos y + cos x sin y = 2 cos x sin y.
Mathematics
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Solve the problem.If p > 1 and q > 1, what can be said about the convergence of 
?
A. May converge or diverge B. Always diverges C. Always converges
Mathematics
Solve the problem.If f varies jointly as q2 and h, and f = -64 when q = 4 and h = -2, find k.
A. k = 2 B. k = -2 C. k = 6 D. k = 4
Mathematics
Write the set in set-builder notation.{-6, -5, -4, -3, ...}
A. {x | x is an integer greater than -7} B. {x | x is an integer between -7 and -2} C. {-6, -5, -4, -3} D. {x | x is any integer}
Mathematics
Find the weekly gross earnings. Overtime is paid at the time-and-a-half rate for hours over 40 per week.
A. $990.00 B. $1,100.00 C. $1,072.50 D. $1,131.00
Mathematics