-2x-2sec² x. sin? x-sin? x-cos²x 2x に 2sec²x-(1-cos³x) - sintx-cus²x = / 2 sec²x + 2 sec²x cos x + 11-cos² 4) - cos?x=1 -2x-2 sec² x 2 cosx 1 + cbs?x - cospx = L ec²x - 25ec2 x + 2-1=1 Cosy-cos24 = 1 (3x (17 Sexxx) 12 con crec?x-sex²x\\ Sec²K) - sin x-cosx-1 -Sec³x + 1 x11-cos³x)-sex- 2 secx-2sec sin²x - sin²x-cos² x = \ 2 secx-2 sectx-(1-cos³x) Sin²x - Los²x 2secx - 2 secx + 2 secx cosx(cos2x) - cosx 2sec -2sec2x + 2 (secx cos x)² - 1 + cos ²x-cos³x 2 sec²x 2secx+2(cosxicos) 2 - 1+ cos²x - cos²x 2 c²x - 2sec²x + 2.1-1+ cos²x-cos²x 2 c2x-2sec² + 2-1 + cos Sinu Isina Cos 25 sinx sinh x

-2x-2sec² x. sin? x-sin? x-cos²x 2x に 2sec²x-(1-cos³x) - sintx-cus²x = / 2 sec²x + 2 sec²x cos x + 11-cos² 4) - cos?x=1 -2x-2 sec² x 2 cosx 1 + cbs?x - cospx = L ec²x - 25ec2 x + 2-1=1 Cosy-cos24 = 1 (3x (17 Sexxx) 12 con crec?x-sex²x\\ Sec²K) - sin x-cosx-1 -Sec³x + 1 x11-cos³x)-sex- 2 secx-2sec sin²x - sin²x-cos² x = \ 2 secx-2 sectx-(1-cos³x) Sin²x - Los²x 2secx - 2 secx + 2 secx cosx(cos2x) - cosx 2sec -2sec2x + 2 (secx cos x)² - 1 + cos ²x-cos³x 2 sec²x 2secx+2(cosxicos) 2 - 1+ cos²x - cos²x 2 c²x - 2sec²x + 2.1-1+ cos²x-cos²x 2 c2x-2sec² + 2-1 + cos Sinu Isina Cos 25 sinx sinh x

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.5: Product-to-sum And Sum-to-product Formulas

Problem 2E

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