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Trigonometrical identities and trigonometrical functions Short Tricks for JEE

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Quick answer

Short tricks for Trigonometrical identities and trigonometrical functions work only with strong fundamentals. Apply the tips below in timed sets and review every explanation.

Use these Trigonometrical identities and trigonometrical functions shortcuts to save time in JEE Mathematics papers — then validate speed with 28+ MCQs on Goodmarks.

Short tricks for speed

  • Trigonometrical identities and trigonometrical functions focus drill

    Solve 15 mixed MCQs for Trigonometrical identities and trigonometrical functions, review every explanation, and note formulas you hesitated on.

  • Calculus substitution scan

    Spot standard forms (sin²x, 1/(a²+x²), e^ax) before integrating — JEE rewards pattern recognition.

  • Graph sketch shortcut

    For coordinate geometry, mark intercepts and asymptotes first; many MCQs need only qualitative graph features.

Syllabus context

Part of Trigonometry in JEE Main Mathematics.

Free sample questions

Attempt 8 free MCQs for Trigonometrical identities and trigonometrical functions. Unlock 20+ more with Pro.

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Q1MathsUnit 14: Trigonometry
A=cos⁡200cos⁡400cos⁡600cos⁡800\mathbf{A}=\cos 20^{0} \cos 40^{0} \cos 60^{0} \cos 80^{0} B=cos⁡60cos⁡420cos⁡660cos⁡780\mathbf{B}=\cos 6^{0} \cos 42^{0} \cos 66^{0} \cos 78^{0} C=cos⁡360cos⁡720cos⁡1080cos⁡1440\mathbf{C}=\cos \mathbf{3} \mathbf{6}^{\mathbf{0}} \cos \mathbf{7} \mathbf{2}^{\mathbf{0}} \cos \mathbf{1 0} \mathbf{8}^{\mathbf{0}} \cos \mathbf{1} \mathbf{4} \mathbf{4}^{\mathbf{0}}
Q2MathsUnit 14: Trigonometry
The measures of the angles of a triangle are in the ratio 4:5:9.4: 5: 9 . The triangle is:
Q3MathsUnit 14: Trigonometry
ln⁡ΔABC,BC=AB\ln \Delta A B C, B C=A B and ∠B=80∘\angle B=80^{\circ} Then ∠A\angle A is equal to
Q4MathsUnit 14: Trigonometry
Two line segments ABA B and ACA C include an angle of 60060^{0} where AB=5cmA B=5 \mathrm{cm} and ACA C =7cm.=7 \mathrm{cm} . Locate points P\mathrm{P} and Q\mathrm{Q} on AB\mathrm{AB} and AC,A C, respectively such that AP=34A P=\frac{3}{4} ABA B and AQ=14AC.A Q=\frac{1}{4} A C . Join PP and QQ and measure the length PQ.
Q5MathsUnit 14: Trigonometry
The terminal arm is in II quadrant, what are the measures of possible angles?
Q6MathsUnit 14: Trigonometry
If 1−sin⁡A1+sin⁡A+sin⁡Acos⁡A=1cos⁡A,\sqrt{\frac{1-\sin A}{1+\sin A}}+\frac{\sin A}{\cos A}=\frac{1}{\cos A}, for all permissible values of A,A, then AA belongs to This question has multiple correct options
Q7MathsUnit 14: Trigonometry
What is the length of arc AB making angle of 1260126^{0} at center of radius 8?8 ?
Q8MathsUnit 14: Trigonometry
An angle which is equal to 360∘360^{\circ} is called 一一一一一一一 _{\text {一一一一一一一 }} angle.

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Frequently asked questions

Are short tricks enough for Trigonometrical identities and trigonometrical functions in JEE?

No — tricks complement concepts. Master the theory first, then use shortcuts in timed MCQ practice.

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