Verify sin ² 60 ⁰ + cos ² 60 ⁰ = 1
Answers
Answered by
7
Step-by-step explanation:
sin
2
60°+cos
2
60°=(
2
3
)
2
+(
2
1
)
2
⇒
4
3
+
4
1
=
4
4
=1
∴sin
2
45°+cos
2
45°=(
2
1
)
2
+(
2
1
)
2
=
2
1
+
2
1
=1
∴sin
2
60°+cos
2
60°=sin
2
45°+cos
2
45°
Hence, the answer is sin
2
45°+cos
2
45°.
Answered by
1
Answer:
By using trigonometry identities
sin^2 O + cos ^2 = 1
Now, using trigonometry table identities.
Sin 60 = √3/2
cos 60 = 1/2
= √3/2 * 1/2
=√3/1. here √3 is cancel out
=1
Sin^2 60 + cos ^2 60=1
Hope this helps you.....
Not sure...
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