The diagram shows triangle PQR with PR = 6 cm, QR = 5 cm and angle QPR

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The diagram shows triangle PQR with PR = 6 cm, QR = 5 cm and angle QPR = 45°.

a. Show that sin Q = 3√2/5

b. Given that Q is obtuse, find the exact value of cos Q.

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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 triangle PQR with PR = 6 cm, QR = 5 cm and angle QPR

Question:

P 45° 6 cm 5 cm R

Step by Step Answer:

To solve this problem well use trigonometric identities and the given information about the triangle Lets start with part a a Show that sin Q 325 In a ...View the full answer

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

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