Question

(Sin45)^2 - (cos45)^2

Answer 1

Answer:

0

Step-by-step explanation:

(1/√2)∧2 - (1/√2)∧2

1/2 -1/2

0

ALTERNATIVE ---

(SIN45)∧2-(COS45)∧2

(COS90-45)∧2 - (COS45)∧2

(COS45)∧2 - (COS45)∧2

0

Answer 2

Answer:

(sin45 + cos45)(sin 45 -cos 45)

(a2-b2=(a+b)(a-b)

(1+1*1-1)

(cos 45=sin45=1)

2*0

0 is ur answer

hope it helps....