anonymous
  • anonymous
Which sum or difference identity would you use to verify that sin (90° + (theta) = cos (Theta)? a. cos (a -b) = cos a cos b + sin a sin b b. sin (a +b) = sin a cos b + cos a sin b c. sin (a -b) = sin a cos b- cos a sin b d. cos (a +b) = cos a cos b - sin a sin b
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
alekos
  • alekos
Well. I reckon it would have to be either b or c. What do you think?
anonymous
  • anonymous
It looks to be that they are asking for the sum of identities. I think, not entirely sure, but I think... So this brings me to believe it, B.
anonymous
  • anonymous
its c, i think so

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
@Krishtika Well, looking at the equation I see this. (90° + (theta)) which makes me think a+b and, I know that it is not d.
zepdrix
  • zepdrix
\[\Large\rm \sin(90^o+\theta)=\sin90^o \cos \theta+ \cos 90^o \sin \theta\] \[\Large\rm =(1) \cos \theta+ (0) \sin \theta\] Mmm ya it looks using the `sum` formula gives us the correct result, ya? :)
anonymous
  • anonymous
@zepdrix So, Am I correct with it being B?
zepdrix
  • zepdrix
yes, good job \c:/
anonymous
  • anonymous
Thank you @zepdrix

Looking for something else?

Not the answer you are looking for? Search for more explanations.