In a triangle ABC, the ratios of the sides are such that a:b:c = 2:3:4. Calculate the value of cos C and hence find the value of sin C.

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions.

A community for students.

In a triangle ABC, the ratios of the sides are such that a:b:c = 2:3:4. Calculate the value of cos C and hence find the value of sin C.

Mathematics
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions

|dw:1441947104976:dw|
|dw:1441947280594:dw|
uh could you show how you calculate sin C using the above formulas

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

given only the 3 sides of the triangle first use the cosine rule to find the largest angle ( the one opposite the longest side) then you can use the sine rule to find the other 2 angles. Here we only need to find the sin of c we already calculated C you just use the calculator to find sin C.
oh my question requires it to be in exact form
is there a way to find sin C without the calculator
@jim_thompson5910 @ganeshie8 can we use the ratio of the sides of the triangle as the lengths of each side?
@pythagoras123 use the Sin rule above
@Nnesha @zepdrix what would be the lengths of the sides for this triangle?
@triciaal we don't know any of the values for sin A, sin B or sin C
not until after we find the largest angle. you need to read the responses more carefully.
|dw:1441948484416:dw|
|dw:1441948763123:dw|
I get that but how do we use the value of cos C to find the value of sin C without solving for the angle C itself?
think about your username any ideas?
oh I get it now lol thx
|dw:1441949293293:dw|
so with just the ratios of the sides given, we can find the trig ratio?
|dw:1441949484079:dw|
ok thx for your help :)
cosine rule C is the largest angle
you are welcome
@zepdrix thanks

Not the answer you are looking for?

Search for more explanations.

Ask your own question