Sum and Difference Identities

Welcome to the "Sum and Difference Identities" category on Questions LLC! Here, you will find a wide range of questions and answers pertaining to sum and difference identities, which are fundamental concepts in trigonometry. Whether you are a student looking to enhance your understanding, a teacher seeking additional resources, or simply a curious individual interested in exploring the mathematical world of trigonometry, this category is designed to provide comprehensive insights into sum and difference identities. Join our community in unraveling the intricacies of trigonometric functions and their relation to sum and difference identities.

Questions (13)

how to split up using sum and difference identitiescos (13pi/12) PLeaseeeeeeeeeee help!!! thanx a million
1. 3 answers
2. asked by Sabrina
3. 3,932 views
Two pilots take off from the same airport. Mason heads due south. Nancy heads 23 west of south. After 400 land miles, how far
1. 3 answers
2. asked by Anonymous
3. 507 views
If cosA + sinA= root2 cosAShow that cosA - sinA= root2 sinA
1. 4 answers
2. asked by kumar
3. 1,116 views
how do you find the exact value tan(x+y), sinx = (3/5) and secy = (-13/5)
1. 1 answer
2. asked by nani
3. 279 views
Use the given information to evaluate sin (a+b). Exact answers only. No decimals.Tan a = 4/3, cos b ='-12/13; neither a nor b
1. 1 answer
2. asked by Jason
3. 369 views
Use the given information to evaluate sin (a+b). Exact answers only. No decimals.Tan a = 4/3, cos b ='-12/13; neither a nor b
1. 1 answer
2. asked by Anonymous
3. 467 views
prove tanA+tanB=sin(A+B)/cosAcosB
1. 3 answers
2. asked by Anonymous
3. 626 views
Use a sum or difference identity to find the exact value.tan 25deg + tan 5deg / 1-tan 25deg tan 5deg
1. 2 answers
2. asked by tony
3. 1,090 views
im taking testneed answer quick' use the sum and difference identities to write the expression as the cosine of the angle. be
1. 3 answers
2. asked by joy
3. 330 views
1)tan Q = -3/4 Find cosQ-3^2 + 4^2 = x^2 9+16 = sqrt 25 = 5 cos = ad/hy = -4/5 Am I correct? 2) Use the sum and difference
1. 2 answers
2. asked by Abbey
3. 676 views
were doing sum and difference identitiestan (225 degrees+60 degrees) i got to the part where its 1+radical 3/1-radical 3 ..now
1. 2 answers
2. asked by gab
3. 732 views
Express the following as a product containing only sines and/or cosines.sin9x−sin7x
1. 1 answer
2. asked by Daemon
3. 465 views
cos(A+B)+cos(A+B)=2cosAcosB
1. 1 answer
2. asked anonymously
3. 11 views