For which of the following expressions would it NOT be useful to employ a double angle formula in order to calculate? a) 2 tan 15⁰ 1-tan²15⁰ b) 2 sin 75° cos 75⁰ Oc) 1-2 sin² 3% 8 d) 2 cos²12⁰-1
For which of the following expressions would it NOT be useful to employ a double angle formula in order to calculate? a) 2 tan 15⁰ 1-tan²15⁰ b) 2 sin 75° cos 75⁰ Oc) 1-2 sin² 3% 8 d) 2 cos²12⁰-1
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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![For which of the following expressions would it NOT be useful to employ a double
angle formula in order to calculate?
a)
2 tan 15⁰
1-tan²15⁰
b) 2 sin 75° cos 75⁰
Oc) 1- 2 sin²: 3%
8
d) 2 cos²12⁰-1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6f3aff88-4d36-4f8f-a05f-ad4f1d7fefc5%2F94c7b63c-ce0c-41a2-b70d-9a4e385af43d%2Fqecd1m_processed.png&w=3840&q=75)
Transcribed Image Text:For which of the following expressions would it NOT be useful to employ a double
angle formula in order to calculate?
a)
2 tan 15⁰
1-tan²15⁰
b) 2 sin 75° cos 75⁰
Oc) 1- 2 sin²: 3%
8
d) 2 cos²12⁰-1
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