Question

Verify the dentity: sin (a ~ B) sin (a + 8) = cos 28 - cos Write the left side of the identity using the sum and difference formula sin & cos p cos & sin P )sin & cos 8 + cos & sin pl (Type the terms of your expression in the same order as they - appear in the original expression ) Use the distributive property to simplify the expression from the previous step_ sin 0 cos 28 - cos & sin (Simplify your answer: ) Substitute cos P for sin - 8 in the expression from the previous step and distribute Regroup and factor the expression from the previous step_ Do not apply any trigonometric identities yet:

Name: verify the dentity sin a b sin a 8 cos 28 cos write the left side of the identity using the sum and difference formula sin cos p cos sin p sin cos 8 cos sin pl type the terms of your express 18658
Uploaded: 2022-11-22T14:43:23-08:00
Duration: 1 min 50 s
Channel: Donna Densmore
Description: verify the dentity sin a b sin a 8 cos 28 cos write the left side of the identity using the sum and difference formula sin cos p cos sin p sin cos 8 cos sin pl type the terms of your express 18658

          Verify the dentity:
sin (a ~ B) sin (a + 8) = cos 28 - cos
Write the left side of the identity using the sum and difference formula
sin & cos p cos & sin P )sin & cos 8 + cos & sin pl (Type the terms of your expression in the same order as they - appear in the original expression )
Use the distributive property to simplify the expression from the previous step_
sin 0 cos 28 - cos & sin
(Simplify your answer: )
Substitute
cos P for sin - 8 in the expression from the previous step and distribute
Regroup and factor the expression from the previous step_ Do not apply any trigonometric identities yet:

verify the dentity sin a b sin a 8 cos 28 cos write the left side of the identity using the sum and difference formula sin cos p cos sin p sin cos 8 cos sin pl type the terms of your express 18658

Added by Lisa M.

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