Teaching HTET TGT Level 2 - 2024 Mock Test Quantitative Aptitude Trigonometry

If θ is acute angle such that sin θ = cos θ, then the value of 2 tan2 θ + sin2 θ - 1 is

1
\( \frac{1}{2}\)
2
\( \frac{1}{{\sqrt 2 }}\)
3
\(\frac{3}{2}\)
4
\(\frac{{\sqrt 3 }}{2}\)
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