Question

please help me this​

Answer 1

Step-by-step explanation:

$\frac{4}{ {cot}^{2} 30} + \frac{1}{ {sin}^{2}30 } - 2 {cos}^{2} 45 - {sin}^{2} 0 \\ \\ = \frac{4}{ ({ \frac{ \sqrt{3} }{1} )}^{2} } + \frac{1}{ ({ \frac{1}{2} )}^{2} } - 2( { \frac{1}{ \sqrt{2} } )}^{2} - 1 \\ \\ = \frac{4}{3} + 4 - 1 - 1 \\ \\ = \frac{4}{3} + 2 \\ \\ = \frac{4 + 6}{3} \\ \\ = \frac{10}{3} .............$

hope it helps.............☺☺☺☺

@suhani678