TS EAMCET · Maths · Trigonometric Ratios & Identities
If then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
We have 2sinα1+cosα+sinα=x. ⇒2sinα1+cosα+sinα×1-cosα+sinα1-cosα+sinα=x ⇒2sinα1-cosα-sinα12-cosα+sinα2=x ⇒2sinα1-cosα-sinα1-cos2α+sin2α+2cosαsinα=x…
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