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96. Using trig identities (NO CALCULATORS ALLOWED!!), prove the peculiar formula of John Machin (1706): TT -1 = 4 tan-1 4 tan 239 1 and then attack B= tan(4a - B) with 239 -1 and B tan (HINT: Introduce a = tan' = your trig identities.)

96. Using trig identities (NO CALCULATORS ALLOWED!!), prove the peculiar formula of John Machin (1706): TT -1 = 4 tan-1 4 tan 239 1 and then attack B= tan(4a - B) with 239 -1 and B tan (HINT: Introduce a = tan' = your trig identities.)

Advanced Engineering Mathematics
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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96. Using trig identities (NO CALCULATORS ALLOWED!!), prove the peculiar formula of John Machin (1706): TT -1 = 4 tan-1 4 tan 239 1 and then attack B= tan(4a - B) with 239 -1 and B tan (HINT: Introduce a = tan' = your trig identities.)
Transcribed Image Text:96. Using trig identities (NO CALCULATORS ALLOWED!!), prove the peculiar formula of John Machin (1706): TT -1 = 4 tan-1 4 tan 239 1 and then attack B= tan(4a - B) with 239 -1 and B tan (HINT: Introduce a = tan' = your trig identities.)
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