Prove the given identity. sec x - cos x = sin x tan x Use the reciprocal identities for the following problem. If \cot \theta = -\frac{1}{m} (m \neq 0), find \tan \theta. Verify that the equation is an identity. \frac{sin x cot x}{cos x tan...
Comparing the corresponding elements, cos x = 1 and sec x = 1 These both can be true only when x = 0. Answer: x = 0.Example 2: For A = ⎡⎢⎣12−1320−402⎤⎥⎦[12−1320−402] and I is the identity matrix of order 3 x 3, prove that A · I = I · A...
For educators Help EN-US Sign inThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.See Answer Question: Verify each identity.Problem 11-cos2xsin2x=tanx Verify each identity. Problem 1 1-cos2xsin2x=tanx There...
Prove the identity below. 3 sin(4x)/sin(x) = 12 cos(x)cos(2x) Use the Double-Angle Formula for sine as needed and then simplify. Prove the identity: cos(x - y) - cos(x + y) = 2sin x sin y. Prove the identity. arctan x + arctan (1/x) = pi/2, x is greater than ...
Enter a problem...Algebra ExamplesPopular ProblemsAlgebraVerify the Identity sec(2x)=1/(sin(x)^2-cos(x)^2)Step 1 The provided equation is not an identity. is not an identity
【题目】关于三角函数~小强进a) (secX+sinx)^2=(1+sinx)^2=sinX)怎么证明他们相等?b) given the identity cos2X = 1 - 2(sinX)2,show thatsin(π/8)=1/2*√2(2-1/2) 可我们这的确是大一的内容a)对了b)用这个等式去 cos2X=1-2(sinX)^2 ,show thatsin(π/8)=1/2*√3=(2-1/2) ...
Use the double-angle identity to find the exact value for cos(2x) given sin(x) = sqrt(2)/4. Establish the identity. sin x cot x + cos x tan^2 x = sec x. Verify the given identity: sec x + tan x = cos x/1-sin x
Become a member and unlock all Study Answers Try it risk-free for 30 days Try it risk-free Ask a question Our experts can answer your tough homework and study questions. Ask a question Search AnswersLearn more about this topic: What is Trigonometry? | Functions, Formulas & Appl...
On the left, substitute sin(x)/cos(x) for tan(x) and 1/sin(x) for csc(x):1/( (sin(x)/cos(x))*(1/sin(x)) ) =? cos(x)1/( (1/cos(x))*(sin(x)/sin(x)) ) =? cos(x)1/( (1/cos(x))*(1) ) =? cos(x)Just like 1/(1/2) = 2; the left side becomes:...
For example, sin2x+cos2x=1 is an identity since sin2x+cos2x provides 1 for any random value of x. Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this answer The given equation is sin2x(tanx+cotx)=2. Use the d...