1 ) cot x * sin x = cos x
(cos x / sin x) * sin x = cos x
cos x = cos x
Answer: B ) cot x = cos x / sin x
2 ) ( sin² x + cos² x ) / cos x = sec x
1/cos x = sec x
sec x = sec x
Answer: C ) cos² x + sin² x = 1
The mathematical sentance would be, 740 - 14 = 726, hope this helps.:D
A = Lw
---
1/2 = (2/3)w
w = (1/2)(3/2)
---
w = 3/4 yard
---
0.029= 2.9 x 10 power of negative 2
