Answer:
cos²x.sec²x =1 (formula)
cos and sec are reciprocal to each other
cos²x=1/sec²x
now from the eq above,open the brackets and multiply
1-cos²2x
sin²2x
7/2= 3 1/2, 12/5= 2 2/5, 11/7= 1 4/7, 15/4= 3 3/4
Answer:
sorry
Step-by-step explanation:
5.25 -0.75 a is the expression, but to answer the question on the paper you would plug in the number of belts being made into where the variable a is. Hope this helps!
