5+[4×3(2+1)] what is the answer to it

5+[4×3(2+1)] = 41

Step-by-step explanation:

Given that:

5+[4×3(2+1)]

=5+[4*3(3)]     as       (2+1=3)

=5+[4*9]        as         (3*3=9)

=5+[36]          as        (4*9=36)

=41                 as        (5+36=41)

I hope it will help you!

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐