E Maths - Trigo

bonkysleuth SG

In the figure, ABC is a straight line. CD = 7 cm, BC = 4 cm and sin angle DBC = 4/5 and cos angle DBA = 3/5. FInd, giving your answer as fraction in the lowest terms, the value of sin angle BDC. Ans : 16/35

thanks to all.

yiha093 SG

thx for answering ur own qn .

MasterMoogle SG

thx for answering ur own qn .

u so pro u do the working la

eagle SG

This is only 1 part of the question right?

Use sine rule

sin DBC / 7 = sin BDC / 4

so sin BDC = 4/7 * 4/5 = 16/35

yiha093 SG

u so pro u do the working la

im a dumbass. haha !