TS EAMCET · Maths · Trigonometric Ratios & Identities
- A
- B
- C
- D
Answer & Solution
Correct Answer
(B)
Step-by-step Solution
Detailed explanation
Let A=2cos45°+cos56°+cos58°-cos66°2cos28°cos29°sin33° ⇒A=1-cos66°+cos56°+cos58°2cos28°cos29°sin90-57° ∵cos45°=12…
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