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Evaluate : (ii) tan 26°/cot 64°
05
Oct
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 ,
A particle of mass 0.2 kg is moving in one dimension under a force that delivers a constant power 0.5 W to the particle. If the initial speed (in m/s) of the particle is zero, the speed after 5 s is
05
Oct
A particle of mass 0.2 kg is moving in one dimension under a force that delivers a constant power 0.5 W to the particle. If the initial speed (in m/s) of the particle is zero, the speed after 5 s is A particle of mass 0.2 kg is moving in one dimension under a force [...]
Evaluate : (i) sin 18°/cos 72°
05
Oct
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 ,
A bob of mass m, suspended by a string of length l1 is given a minimum velocity required to complete a full circle in the vertical plane. At the highest point, it collides elastically with another bob
05
Oct
A bob of mass m, suspended by a string of length l1 is given a minimum velocity required to complete a full circle in the vertical plane. At the highest point, it collides elastically with another bob A bob of mass m it collides elastically with another bob suspended by a string of length l1 [...]
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 A is not defined for A = 0°
05
Oct
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.
05
Oct
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° =
05
Oct
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 =
05
Oct
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°
05
Oct
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 ,
A block of mass 0.18 kg is attached to a spring of force constant 2 N/m. The coefficient of friction between the block and the floor is 0.1. Initially the block is at rest and the spring is unstretched.
05
Oct
A block of mass 0.18 kg is attached to a spring of force constant 2 N/m. The coefficient of friction between the block and the floor is 0.1. Initially the block is at rest and the spring is unstretched. The work done on a particle of mass m by a force k ( x / [...]