Question

4 sin squared 30 + 2 cos squared 60 - tan squared 45

Answer 1

Answer:

1/2

Step-by-step explanation:

sin 30 =1/2

cos 60 =1/2

tan 45=1

put all values

4*(1/2)^2+2/4 -1

4/4 +2/4-1

1+1/2-1

1/2

Answer 2

Answer:

= 5/2

Step-by-step explanation:

=4* (1/2)²+2*(1/2)²-1=5/2