Math  /  Trigonometry

QuestionWrite the product as a sum: 20cos(25r)sin(21r)=20 \cos (25 r) \sin (21 r)=
Question Help: Video Message instructror

Studdy Solution
Substitute back into the expression:
2012[sin(46r)sin(4r)] 20 \cdot \frac{1}{2} \left[ \sin(46r) - \sin(4r) \right]
Simplify by multiplying through by 20:
10[sin(46r)sin(4r)] 10 \left[ \sin(46r) - \sin(4r) \right]
The product as a sum is:
10[sin(46r)sin(4r)] \boxed{10 \left[ \sin(46r) - \sin(4r) \right]}

View Full Solution - Free
Was this helpful?

Studdy solves anything!

banner

Start learning now

Download Studdy AI Tutor now. Learn with ease and get all help you need to be successful at school.

ParentsInfluencer programContactPolicyTerms
TwitterInstagramFacebookTikTokDiscord