Elitmus Exam Numerical Ability Trigonometry

If a = tan6 tan 42
and B = cot66 cot 78
then

(a) A = 2B (b)
1
AB
3
=
(c) A = B (d) 3A = 2B.

Read Solution (Total 5)

Elitmus Other Question

in a strange twist of hearts ,p politicians of a country agreed to an average donation od rs.D each.Q of these poloticians ,who had pledged an averageof rs.A never donated the pledged mooney .which of the following expressions represents the percent of the pledged money thas ws actually donated
a)100(QA/PD)
b)100(PD/QA)
c)100-100(QA/PD)
d)100PD-100(QA/PD)
If m and n are two positive integers, then what is the value of mn?

(1)7m + 5n= 29
(2) m + n= 5