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Trigonometric Functions — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSTrigonometric Functions1 Mark
Question
$\sin10^\circ$ is greater than $\cos10^\circ.$
✓

Answer

False.
Solution:
$$If $\sin10^\circ>\cos10^\circ$
$\Rightarrow\sin10^\circ>\cos(90^\circ-80^\circ)$
$\Rightarrow\sin10^\circ>\sin80^\circ$ Which is not possible, because value of sine is in increasing order .
Hence, the statement is 'False'. 

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