1. Verify the following identity: \sin \theta + \cos \theta = \frac{\tan \theta + 1}{\sec \theta} 2. Find the exact value of cos 15 degree. 3. Compute the exact value of sin 2x from x between \frac{ Verify that the equation is an identity. {cos 2 x...
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Identify the correct identity: ( ) A. tan ^2x-sin ^2x=-sin ^2x-tan ^2x B. tan ^2x-sin ^2x=sin ^2x\ tan ^2x C. tan ^2x-sin ^2x=-sec ^2x\ tan ^2x D. tan ^2x-sin ^2x=sin ^2x+tan ^2x 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
百度试题 结果1 题目Identify the correct identity: () A. B. C. D. 相关知识点: 试题来源: 解析 D 反馈 收藏
tan^2x- cot ^2x= sec ^2x- csc^2 x 相关知识点: 试题来源: 解析 Common denominator. Simplify using Pythagorean identity.If you don't know how it works, please review Fundamental Trigonometry Identities (Section 7.1) and Special Product Formulas (Section 1.3). LHS=((sin )^2x)((cos )^2...
Use the identities tan(x) = sin(x)/cos(x) and csc(x) = 1/sin(x) to get: 1/(tan(x) × csc(x)) = 1/[(sin(x)/cos(x) × 1/sin(x)] Now just work with the denominator (bottom) of the rational expression (fraction): sin(x)/cos(x) × 1/sin(x) = 1/cos(x) Now...
百度试题 结果1 题目1 + tan^2x =?Complete the identity (equation) 1 + tan2x = ?x .Is your answer true for all values of x ? 相关知识点: 试题来源: 解析 1+tan^2 x=sec^2 x 反馈 收藏
(sin (2x))(1-cos (2x))= 1(tan (x)) (sin (2x))(1-cos (2x)) = () = () = () = () 相关知识点: 试题来源: 解析 (split) & (sin 2x)(1-cos 2x) = (2sin xcos x)(1-(1-2sin^2x)) \&=(2sin xcos x)(1-1+2sin^2x) = (2sin xcos x)(2sin^2 x) \&=(...
Answer to: Verify the trigonometric identity: sec x + tan x = 1 / {sec x - tan x}. By signing up, you'll get thousands of step-by-step solutions to...
百度试题 结果1 题目【题目】Identify the correct identity: ()A. 2tan^2x+1=tan^2x+sec^2xB. 2tan^2x-1=tan^2x+sec^2xC. 2tan^2x+1=tan^2x-sec^2xD. 2tan^2x-1=tan^2x-sec^2x 相关知识点: 试题来源: 解析 【解析】A 反馈 收藏 ...