Answer:
1/18 I believe or it should be 1/3. May be wrong, sorry
27^(-2/3)=1/((∛27)^2)
=1/3^2
=1/9
Answer: 140cm 2
Step-by-step explanation: 8 x 5 = 40 x 4 = 115 + 25 = 140
Yes it is true:
(1 - cos^2 x) = sin^2 x Sqr.(1 - cos^2 x) = sin x and (-sinx) True, since sin x negative. Also, x terminates in quadrant 3 and 4. Hope this is helpful
