UPSC CDS Math Trigonometric Ratios and Trigonometric Identities Questions

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Question : 33 of 107
 
Marks: +1, -0
If A=
sin‌45°−sin‌30°
cos‌45°+cos‌60°
and B=
sec‌45°−tan‌45°
cosec‌45°+cot‌45°
,
then which one of the following is correct ?
[2017 CDS-II]
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