SOLUTION: Show that the values are equal.
sin^2 60 degrees + cos^2 60 degrees=sin^2 45 degrees + cos^2 45 degrees
Algebra.Com
Question 180731: Show that the values are equal.
sin^2 60 degrees + cos^2 60 degrees=sin^2 45 degrees + cos^2 45 degrees
Answer by eperette(173) (Show Source): You can put this solution on YOUR website!
sin^2 60 degrees + cos^2 60 degrees=sin^2 45 degrees + cos^2 45 degrees
(sin(60))^2 + (cos(60))^2= (sqr(3)/2)^2 + (1/2)^2 = 3/4 + 1/4 = 4/4=1
(sin(45))^2 + (cos(45))^2= (sqr(2)/2)^2 + (sqr (2)/2)^2= (2/4) + (2/4)=4/4=1
RELATED QUESTIONS
Show that the values are equal.
1-2 sin^2 30 degrees= cos 60... (answered by eperette)
Calculate:
A) Tan^2 225degrees-sin 60 degrees cos 30 degrees ( don't understand... (answered by Alan3354,ikleyn)
Show how both sides equal.
sin 45 degrees= Square root 1-cos 90 degrees/2.
PLEASE... (answered by eperette)
please help me with my homework: using exact values, verify that cos 60 degrees = 1 - 2 (answered by stanbon)
which equation is true ?
A) sin 30 degrees=sin 60 degrees
B) sin 45 degrees = cos 45... (answered by Alan3354)
Evaluate and simplify.
Cos 60 degrees - sin 60 degrees/ cot 45 degrees (answered by lwsshak3)
Show how both sides equal.
2 cos^2 30 degrees-1 = cos 60... (answered by eperette)
Using the exact values, verify that cos 60 degrees = 1-2 sin^2 30 degrees
I need... (answered by Alan3354)
Please help me with this!
If:
z=4(cos 50 degrees + i sin 50 degrees) and w=2(cos 340... (answered by Edwin McCravy)