The diagram shows the triangle ABC with AB = 11 cm, BC = 6 cm and AC

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The diagram shows the triangle ABC with AB = 11 cm, BC = 6 cm and AC = 7 cm.

a. Find the exact value of cos B, giving your answer in simplest form.

b. Hence find the exact value of sin B.

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Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

ISBN: 9781292183398

1st Edition

Authors: Greg Attwood

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Question Posted: Jul 16, 2023 12:22 AM

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The diagram shows the triangle ABC with AB = 11 cm, BC = 6 cm and AC

Question:

B 6cm 11 cm 7 cm A

Step by Step Answer:

To find the exact value of cos B and sin B in triangle ABC we can use the cosine ru...View the full answer

Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

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