Answer:
C. √105
Step-by-step explanation:
105 = 3·5·7 has no square factors, so its root cannot be simplified.
√105 simplified is √105.
The value of sin(a)cos(a) = 0.32
Step-by-step explanation:
Step 1: Given details are sin(a) - cos(a) = 0.6
Step 2: Square the given equation on both sides.
⇒ (sin(a) - cos(a))² = (0.6)²
⇒ sin²a + cos²a - 2 sin(a)cos(a) = 0.36
⇒ 1 - 2 sin(a)cos(a) = 0.36 since sin²a + cos²a=1
⇒ - 2 sin(a)cos(a) = - 0.64
⇒ 2 sin(a)cos(a) = 0.64
⇒ sin(a)cos(a) = 0.32
SUM OF COMPLEMENTARY ANGLE IS ALWAYS 90 DEGREE
Answer:
hey mate here is your answer
The interior angle of a regular 21-gon is around 162.86∘