This question is from trigonometry topic -trigonometric ratios on complementary angles in which we have been asked to express the following in terms of T-ratios of angles lying between 0° and 45°: cos65° + tan49°
RS Aggarwal, Class 10, chapter 12, question no 8(ii)
cot65°+tan49°
=cot(90°−25°)+tan(90°−41°)
=tan25°+cot41°