Question

If r= (-4), s= (-3) and t=2. Find: rs+ st+ tr

Answer 1

Answer:

We have, l(ST)=3.7;l(RS)=2.5.l(ST)=3.7;l(RS)=2.5.

Now, l(RT)=l(RS)+l(ST)=3.7+2.5l(RT)=l(RS)+l(ST)=3.7+2.5

l(RT)=5.6

Answer 2

$\huge\underline{\overline{\mid{\bold{\pink{☨ AnsweR ☨}}\mid}}}$

$\tt\red{◎ GiveN , r = ( - 4 ) , s = ( - 3 ) and t = 2 }$

$\tt\red{◎ putting - back - the - value - of - r , s and t }$

$rs + st + tr \\ \\ = ( - 4 \times - 3) + ( - 3 \times 2) + (2 \times - 4) \\ \\ = - 12 + ( - 6) + ( - 8) \\ \\ = 12 - 6 - 8 \\ \\ = 6 - 8 \\ \\ = - 2$

$\sf\colorbox{blue}{✯ mark - me - as - brainliest ✯}$