NCERT Class 10

Evaluate : (ii) tan 26°/cot 64° Evaluate : (ii) tan 26°/cot 64° October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,

Evaluate : (i) sin 18°/cos 72° Evaluate : (i) sin 18°/cos 72° October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,

State whether the following are true or false. Justify your answer. .(i) sin (A + B) = sin A + sin B. (ii) The value of sin θ increases as θ increases. (iii) The value of cos θ increases as θ increases. (iv) sin θ = cos θ for all values of θ. (v) cot [...]

If tan (A + B) = √3 and tan (A – B) = 1/√3 ; 0° B, find A and B. find a and b . If tan (A + B) = √3 and tan (A – B) = 1/√3 ; 0° <A> B October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , [...]

Choose the correct option and justify your choice: (iv) 2 tan 30°/1 – tan^2 30° = Choose the correct option and justify your choice: (iv) 2 tan 30°/1 - tan^2 30° = October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,

Choose the correct option and justify your choice: (iii) sin 2A = 2 sin A is true when A = Choose the correct option and justify your choice: (iii) sin 2A = 2 sin A is true when A = October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class [...]

Choose the correct option and justify your choice: (ii) 1-tan^2 45°/1+tan^2 45° Choose the correct option and justify your choice: (ii) 1-tan^2 45°/1+tan^2 45° October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,

Choose the correct option and justify your choice: 1+tan^2 30 degree /2 tan 30 degree Choose the correct option and justify your choice: 1+tan^2 30 degree /2 tan 30 degree October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,

Evaluate the following: (iv) (sin 30 + tan 45 – cosec 60) / (sec 30 + cos 60 + cot 45) Evaluate the following: (iv) (sin 30 + tan 45 - cosec 60) / (sec 30 + cos 60 + cot 45) October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , [...]

Evaluate the following : (iii) cos45 degree / (sec30 degree + cosec30 degree) Evaluate the following : (iii) cos45 degree / (sec30 degree + cosec30 degree) October 5, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,