Evaluate \int_2^3cosx dx.

Category: QuestionsEvaluate \int_2^3cosx dx.
Editor">Editor Staff asked 11 months ago

Evaluate \int_2^3cosx dx.
(a) 38.2
(b) sin (9) – sin (4)
(c) 89.21
(d) sin (3) – sin (2)
The question was posed to me in homework.
I want to ask this question from Definite Integral in portion Integrals of Mathematics – Class 12
NCERT Solutions for Subject Clas 12 Math Select the correct answer from above options 
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1 Answers
Editor">Editor Staff answered 11 months ago

Correct choice is (d) sin (3) – sin (2)
The best I can explain: \int_2^3cosx dx = (sin x)^32
= sin (3) – sin (2)