Question

Sin theta/ (cot theta + cosec theta) is equal to
a) 1/(tan theta + cot theta)
b) (1+cos theta) / sin theta
c) (1+sin theta)/ cos theta +2
d)2 + sin theta/(cot theta -cosec theta)

The correct answer given is ‘d’ but need explanation

Answer 1

Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.

Answer 2

Answer:

c.) (1+sin theta)/ cos theta +2.

$thanks$