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Buisness Project File|Marketing of PEN| Class-12

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Class10 ARITHMETIC PROGRESSION (part-1)

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2. ELIMINATION METHOD# (Linear Equations in two variables)

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Evaluate using suitable Identities - Class IX

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Expand using suitable Identities...

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'Accountancy comprehensive project' class12📓 ...

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Economics Project File📓 (Class12)...on 'POVERTY'...

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Business studies📓class 11&12 Project on Marketing management-PATANJALI...

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Accounts Project class 11

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Diwali Decoration Ideas..#Easy Paper Lantern making for Diwali#...

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Without Multiplying, Find the products (i)103×107 (ii)104×96

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ALGEBRAIC IDENTITIES (Class-9)..Identity-1 (x+a)(x+b)=x^2+(a+b)x+ab

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Quadratic Equations (Part-3)..Quadratic Formula {Shreedharacharya's Method}..

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Quadratic Equations (Part-2) Completing the Square Method....

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Quadratic Equations (Part-1) Factorization Method....

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(1+tan^2A)/(1+cot^2A)=[(1-tanA)/(1-cotA)]^2=tan^2A

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(cosecA-sinA)(secA-cosA)=1/(tanA+cotA)

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[tan∆/(1-cot∆)]+[cot∆/(1-tan∆)]=1+sec∆cosec∆

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(1+secA)/secA=sin^2A/(1+cosA)

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√(1+sinA)/(1+sinA)=secA+tanA

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sec^4∆-sec^2∆=tan^4∆+tan^2∆

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(sin∆-2sin^3∆)/(2cos^3∆-cos∆)=tan∆

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(cosec∆-cot∆)^2=(1-cos∆)/(1+cos∆)

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Prove that:(SinA+cosec A)^2+(CosA+SecA)^2=7+tan^2A+cot^2A