Trigonometry (Quiz) Level -1

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$$\begin{array}{l}IftanA=\frac{4}{3}, Then\\ sinA=\frac{4}{\mathrm{<input\; type="text"\; name="q1"\; size="1"\; value="">}}\end{array}$$

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If tanA = 1, then
   2 sinA cosA =

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In the given rt.angled triangle,the value of $${cos}^2\theta +{sin}^2\theta =$$

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