Sin 40°= A) Sin × 40° B) Sin + 40° C) Sin 20° + Sin 20° D) A real number
Sin 40°=
A) Sin × 40°
B) Sin + 40°
C) Sin 20° + Sin 20°
D) A real number
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Correct option is: D) A real number
sin \(40^\circ\) \(\neq\) sin \(\times\) \(40^\circ\)
\(\neq\) sin + \(40^\circ\)
\(\neq\) sin \(20^\circ\) + sin \(20^\circ\) ( \(\because\) sin \(20^\circ\) = 0.342 & sin \(40^\circ\) = 0.643)
But sin \(40^\circ\) is a real number.
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