Use the formula , where to rewrite the trigonometric expression in the following form.
C)7
D)3

Question

Use the formula  , where  to rewrite the trigonometric expression in the following form. ​  ​  ​
C)7 
D)3

Quizplus · Accepted Answer

We notice that the given formula has the form: 
11eacce6_1e7c_a18b_9f49_112b8c31aa3e_TB7896_11 
- sin^2(x) 11eacce6_1e7c_7a7a_9f49_4717ce590a02_TB7896_11 
+ cos^2(x) 11eacce6_1e7c_c89c_9f49_e954cc2be18d_TB7896_11 
= 11eacce6_1e7c_efad_9f49_03712d48f951_TB7896_11

Comparing with the given options, we see that option B matches with the required form where: 
- sin^2(x) = 11eacce6_1e7d_3dd0_9f49_676e37473f00_TB7896_00
+ cos^2(x) = 11eacce6_1e7d_64e1_9f49_43090b677e33_TB7896_11

Therefore, the answer is B.

Use the Formula , Where to Rewrite the Trigonometric