2010
Mathematics
67ca00ce0c643c71d77dee1f
If y = x sinx, find dy/dx
A.
sin x - x cosx
B.
sinx + x cosx
C.
sinx - cosx
D.
sinx + cosx
Correct Answer: sinx + x cosx
Explanation
If y = x sinx, then Let u = x and v = sinx du/dx = 1 and dv/dx = cosx Hence by the product rule, dy/dx = v (du/dx) + u(dv/dx) = (sin x) x 1 + x cosx = sinx + x cosx
If y = x sinx, then Let u = x and v = sinx du/dx = 1 and dv/dx = cosx Hence by the product rule, dy/dx = v (du/dx) + u(dv/dx) = (sin x) x 1 + x cosx = sinx + x cosxTHIS WEEK's
Latest Articles
Top-Scorer Okoro Uchechukwu Solomon Reveals How He Scored 337 in JAMB
by samuel olalekan adeyemi
Bouncing Back: How Samuel Isaac Overcame Setbacks to Score 265 in JAMB and What He Learned
by samuel olalekan adeyemi
Managing Stress During Exams: Practical Tips for Students
by samuel olalekan adeyemi
