Helping little sis with homework! =) A student says that the solution of 375 = x – 28 is 347. Explain the student’s error and fi
1 answer:
You might be interested in
cosU:-
As U lies in Q3
- cosU=-24/25
sinV
As V lies in Q3
- sinV=-3/5
So
- sin(V-U)=sinVcosU-cosVsinU=(-3/5)(-24/25)-(-4/5)(-7/25)=72/125-28/125=72-28/125=<u>4</u><u>4</u><u>/</u><u>1</u><u>2</u><u>5</u>
- cos(U-V)=cosUcosV+sinUsinV=(-24/25)(-4/5)+(-7/25)(-3/5)=96/125+21/125=117/125