Question

जात किनिए
7
taus 54
cot To
tun 20
Cot 36
$\cot(70) \div \tan(20) - 7 \tan(54) \div \cot(36)$
​

Answer 1

Step-by-step explanation:

cot70÷tan20-7tan54÷cot36

=tan(90-70)/tan20 - 7cot(90-54)/cot36

sincecot70=tan(90-20)

tan54=cot(90-54)

=tan20/tan20 - 7cot36,/cot36

=1 - 7

= -6