📘 MATHS⚡ Speed MathsLevel 3 · Squares, Roots aur DivisionChapter 154 Posts
Cube Roots of Perfect Cubes 🧊
Cube (³) matlab number ko teen baar multiply (4³ = 4 × 4 × 4 = 64), aur cube root (∛) matlab reverse cube: ∛64 = 4. 1³ se 10³ ki list, square aur cube ka difference, aur perfect cube ka root do parts mein: last teen digit alag karo, last digit se root ki ikai (2 ↔ 8, 3 ↔ 7 ki pair), aur left part se dahai (∛117649 = 49). Zero wale cubes (∛27000 = 30), point wale (∛0.027 = 0.3), perfect cube hai ya nahi, aur multiply karke check. Har post mein timer, diagram, drill, MCQs aur Challenge.
🌱 Naye ho? Pehle Ch 1 se Ch 14 tak order se padho, phir yahan 15.1 se shuru karo. (Ch 9 abhi nahi aaya hai; use chhod kar padho.)
15.1
Cube Aur Cube Root Kya Hai: ³ Ka Matlab Aur 1 Se 10 Ke Cubes
Cube = 3 baar multiply (4³ = 4 × 4 × 4 = 64), square se difference, 1³ se 10³ ki list aur ∛ ka matlab: ∛64 = 4
Padho →
15.2
Last-Digit Rule: Perfect Cube Ka Cube Root (∛117649)
Last teen digit alag, last digit se ikai (2 ↔ 8, 3 ↔ 7), left part se dahai: ∛117649 = 49
Padho →
15.3
Bade Cubes, Zero Wale Cubes Aur Check: Kaunsi Trick Kab
∛64000 = 40, ∛1728000 = 120, ∛912673 = 97, jawab ka check (ikai aur beech), aur kab yeh trick nahi
Padho →
15.4
Cube Root Ke Tricky Sawaal
Soch wale mushkil sawaal: 15.1–15.3 ka mix, perfect cube hai ya nahi, cube box, ∛0.027 aur dhokhe
Padho →
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