Verify the Identity cos(x+y)=cos(x)+cos(y) ( (cos)(x+y)=(cos)(x)+(cos)(y)) 相关知识点: 试题来源: 解析 The provided equation is not an identity. ( (cos)(x+y)=(cos)(x)+(cos)(y)) is not an identity反馈 收藏
identity在数学上的意思是“单位元”或者“恒等式”，the quotient identity就是带有除法的恒等式/公式，至于具体指哪个要看上下文语境。例如如果上下文一直在谈tangent，那么the quotient identity多半指公式tan(x)=sin(x)/cos(x)；而the quotient identity of tangent of half angles一般指公式tan(x/2...
Answer to: Verify the identity. \\ \sin x+\cos x\cot x=\csc x By signing up, you'll get thousands of step-by-step solutions to your homework...
Answer to: Prove that the identity is true. cos x (csc x - tan x) = cot x - sin x By signing up, you'll get thousands of step-by-step solutions to...
( (cos)(x+y)+(cos)(x-y)=2(cos)(x)(cos)(y)) 相关知识点: 试题来源: 解析 The provided equation is an identity but there are no steps available.( (cos)(x+y)+(cos)(x-y)=2(cos)(x)(cos)(y)) is an identity反馈 收藏 ...
Answer to: Verify the identity: \sin^{1/2}x \cos x - \sin^{5/2}x \cos x = \cos^3 x\sqrt{\sin x}. By signing up, you'll get thousands of...
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Cancel theof1+sin(x). 1-sin(x) 1−sin(x)1-sin(x) Rewrite1−sin(x)1-sin(x)as1−1csc(x)1-1csc(x). 1−1csc(x)1-1csc(x) Because the two sides have been shown to beequivalent, theequationis anidentity. cos2(x)1+sin(x)=1−1csc(x)cos2(x)1+sin(x)=1-1csc...
• x should not be one of the vars. Examples > solveidentitysinx=cosax+b,x,a,b a=−1,b=π2,a=1,b=−π2 (1) > solveidentity3x2+4x+4=Ax+BP,x,A,B,P A=3,B=2...
Enter a problem...Algebra ExamplesPopular ProblemsAlgebraVerify the Identity 1-cos(12x)=2cos(12x)^2Step 1 The provided equation is not an identity. is not an identity