Question
Download Solution PDFWhich of the following options is NOT a correct trigonometric identity?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation
Option 1: 1 + cot2θ = cosec2θ; is correct.
Option 2: 1 + tan2θ = sec2θ; is correct.
Option 3: 1 - sin2θ =cos2θ; is correct.
Option 4: cos2θ - sin2θ = cos(2θ) is not correct.
The answer is 4.
Last updated on Jun 13, 2025
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