Without using a calculator, find the exact value of: a. sin75 b. tan75 c. cos105 d. tan(15)
Question:
Without using a calculator, find the exact value of:
a. sin75°
b. tan75°
c. cos105
d. tan(−15°)
e. sinπ/12
f. cos19π/2
g. cot7π/12
h. sin7π/12
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Using the trigonometric identity sinAB sinAcosB cosAsinB we can write sin 75 sin 45 30 sin 45 cos 30 ...View the full answer
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Related Book For
Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook
ISBN: 9781108407199
1st Edition
Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey
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