Find the length of the curve accurate to 3 decimal places. Do not use a calculator. r=sec \theta 0 Consider the curves Z=X^2+ Y^2 \ and \ X + Y = 0 . Find a vector-valued function for the intersection of the two curve....
Find y' if \sin(x+y)=y^2 \cos x Determine :\int_{0}^{4} \int_{0}^{4} r^{2} \sin (\theta) \cos (\theta) d r d \theta Find frac{dy}{dx}. y=int_{sqrt x}^{frac{pi}{3 cos (t^2)dt Find exact value: \cos 1^{\circ} +\cos 2^{\circ} + \cos 3^...
cosθ2=1+cosθ2sinθ2=1−cosθ2tanθ2=1−cosθ1+cosθ This allows us to calculate trigonometric functions of known angles without the use of a calculator. An example is given below. Answer and Explanation:1 ...
Let \theta be an acute angle such that \tan \theta= 1/2. Find \sec \theta. Find the exact value of the remaining trigonometric functions of . tan = -8/15, cos < 0 sin = ___ (Simplify your answer. Type an exact answer, using ra...
How do you find sin 75 without a calculator? sin(A + B) = sin A cos B + cos A sin B, we can find the sine of(45° + 30°)to give sine of 75 degrees. Secant (sec), cosecant (csc) and cotangent (cot) example | Trigonometry | Khan Academy ...
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= sin theta sin (180° –θ) = sin θ hence, there are three points that we can conclude here: 180° – θ will come in iind quadrant for any angle subtracted from 180°, sin will not be changed to cos the sign of sine ratio in the second quadrant will remain positive how to...
, and tangent of the angle without using a calculator. (If an answer is undefined, enter UNDEFINED.)225°[2 Marks]Q 3. Find the period and amplitude. Sketch the graph of the function.[2 Marks)y=9cos2πxQ 4. If ...
My drawing did not have enough detail maybe because in the end the calculator for theta was correct. It was launched from a building 20m high which I did not include in the drawing, and the theta I calculated was the angle at the bottom near the impact site. Maybe that clears it up,...
Evaluate the sine of 1 degree using a TI Scientific Calculator and you will get 0.0174524064. Evaluate the above messy expression and you will also get 0.0174524064. Even allowing for calculator rounding errors, we can be confident our answer is correct. ...