Question

sin^2 60°+ cos^2 45°​

Answer 1

Answer:

sin

2

60°−cos

2

45°+3tan

2

30°

⟹(

2

3

)

2

−(

2

1

)

2

+3(

3

1

)

2

⟹

4

3

−

2

1

+3×

3

1

⟹

4

3

−

2

1

+

1

1

⟹

4

3−2+4

=

4

7−2

=

4

5

=1

4

1

Answer 2

Step-by-step explanation:

sin60=√3/2

cos45= 1/√2

sin^260+cos^245

= 3/4+1/2

= 3/4+2/4

=5/4