Question

what will be the value of this?​

Answer 1

Step-by-step explanation:

sin²(120°-#)+sin²(120+#)

(sin120°cos#-cos120°sin#)²+(sin120°cos#-cos120°sin#)²

2(sin²120°cos²#+cos²120°sin²#)

2(3/4*cos²#+1/4*sin²#)

(2cos²#+1)/2