Answer:
- 0.944
Step-by-step explanation:
We know that,
cos 3A = 4 cos³A - 3 cos A (formula)
So,
If cos A = 0.4,
cos 3A = 4 cos³A - 3 cos A
cos 3A = 4 × (0.4)³ - 3 × (0.4)
cos 3A = 4 × 0.064 - 1.2
cos 3A = - 0.944
Hope it helps ⚜
Answer:
225
Step-by-step explanation:
360 - 135 = 225
Answer:
π-2 ,√2, √10–2, e-1 and the Golden Ratio Φ which equals (√5+1)/2.
Multiply 8 with pi since the equation for circumference is 2pi(r), or d(pi). The answer is 25.13
40 percent. Times both by twenty
