Boards near hain aur formulas ka dher!
Har Class 10 student ka ek hi doubt hota hai —
Sir, itne saare trigonometry formulas yaad kaise karun?
Tension mat lo
Aaj ke blog mein hum share kar rahe hain Top 10 easy tricks jisse tum sirf 5 minutes mein sab formulas yaad kar loge + ek free downloadable formula chart PDF bhi milega!
Why Trigonometry is Important in Class 10
Trigonometry Class 10 Maths ka ek scoring chapter hai.
Almost har board exam mein 2–3 direct formula-based questions aate hain.
Agar formulas yaad ho gaye → 8–10 marks fix
Isliye ye chapter smart revision se master karna zaroori hai.
What is Trigonometry in Class 10? (Simple Explanation)
Trigonometry ka meaning hai Triangle + Measurement.
Yani right-angled triangle mein angles aur sides ka relation.
Basic Ratios:
- sin θ = Perpendicular / Hypotenuse
- cos θ = Base / Hypotenuse
- tan θ = Perpendicular / Base
Easy Trick:
Yaad rakho — “Some People Have, Curly Brown Hair, Through Proper Brushing”
(Sin = Perp/Hypo, Cos = Base/Hypo, Tan = Perp/Base)
Tip: Ek simple right triangle (△ABC) ka diagram bana kar visualise karo — formulas instantly yaad ho jaayenge!
Top 5 Repeated Trigonometry Questions (Class 10 Boards)
Prove tanA = sinA / cosA
Find value of sin²A + cos²A
Simplify sec²A – tan²A = 1
Find sin30°, cos60°, tan45°
Solve: 2sin²A = 1 → sinA = 1/√2
Tip: Ye 5 questions har saal board paper mein repeat hote hain — zaroor practice karo!
3 Common Mistakes Students Make in Class 10 Trigonometry
Reciprocal identities mix-up (sec ≠ cos!)
Degree vs radian confusion
Wrong signs in different quadrants
Fix: “All Students Take Coffee” mnemonic yaad rakho aur har quadrant pe sign mark karo.
2-Minute Trick / Motivation
Just like Arjun focused only on the bird’s eye —
tumhe bhi sirf formula aur concept pe focus karna hai, fear pe nahi.
Daily 2-min revision = Smart work > Hard work.
Try It Yourself
Find the value of:
sin60° × cos30° + sin30° × cos60° = ?
Comment your answer below
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- Next Blog → Most Important Trigonometric Identities for Class 10 Board Exam 2026
