Measures of angles 2, 3, 4, added equal 180
Im pretty sure its 18 unless im reading it wrong
(1-cos^2(x)) csc^2(x)=1
one of the trigonometry rules is sin^2(x) + cos^2(x) = 1 if you rearrange this you realize that sin^2= 1-cos^2(x)
we also know that csc^2(x)= 1/sin^2(x) so now you can rewrite your equation as:
sin^2(x) x 1/sin^2(x) = 1
sin^2(x)/sin^2(x) =1
the LHS (left hand side) can cancel down to 1 because the numerator and denominator are the same
so then 1=1 Therefore LHS=RHS
Hope this helps
8 ÷ 11 = 0.72727272...
Therefore, decimal '72' is repeating
90-80=10. 9-6=1 and 0-0=0 so it equals 10. Hopefully this helped!! =“)
