Question

Verify sin ² 60 ⁰ + cos ² 60 ⁰ = 1​

Answer 1

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°.

Answer 2

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...