TS EAMCET · Maths · Trigonometric Ratios & Identities
Maximum value of is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
(2cos218°-sin18)(cosθ+32cos(θ+π4)+3) =(1+cos36°-sin18)(cosθ+32cos(θ+π4)+3) =1+5+14-5-14cosθ+32cos(θ+π4)+3 Now, using cos(A+B)=cosAcosB-sinAsinB, we get 32cosθ+32cosθcosπ4-sinθsinπ4+3…
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