Question

Sin² 6o-tan²45 cos^2 30-cot 90= ??

please help me guys .... ​

Answer 1

Answer:

1/2 is your answer

Step-by-step explanation:

$(\frac{\sqrt{3}}{2}) ^2$ - $1^2+$$(\frac{\sqrt{3}}{2}) ^2$ -0  = 3/4-1+3/4 = 6/4-1 = 3/2-1 = 3-2/2= 1/2