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  1. Creating an animated birthday card in Scratch involves selecting a festive background, adding a sprite to display the message and animating text using ‘Looks’ blocks. Motion blocks create smooth sprite movements, while sound blocks allow background music or recorded voice messages. Interactive elemeRead more

    Creating an animated birthday card in Scratch involves selecting a festive background, adding a sprite to display the message and animating text using ‘Looks’ blocks. Motion blocks create smooth sprite movements, while sound blocks allow background music or recorded voice messages. Interactive elements like button clicks or character animations make the card engaging. The final project can be shared online or downloaded as a personalized digital greeting.

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  2. In Scratch, users can add music using ‘Sound’ blocks. The platform offers a library of sounds or users can upload their own audio files. ‘Play Sound’ and ‘Start Sound’ blocks allow background music, effects or voiceovers. Looping and volume control ensure dynamic integration. Music enhances storytelRead more

    In Scratch, users can add music using ‘Sound’ blocks. The platform offers a library of sounds or users can upload their own audio files. ‘Play Sound’ and ‘Start Sound’ blocks allow background music, effects or voiceovers. Looping and volume control ensure dynamic integration. Music enhances storytelling and gameplay, making projects more immersive and enjoyable for users.

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  3. Choice (b) is correct. Let y = (sin x + cos x)² = sin² x + cos² x + 2 sin x cos x = 1 + 2 sin x cos x dy/dx = d/dx (1 +2sin x cos x) = d/dx (1) + 2 d/dx (sin x cos x) ⇒ dy/dx = 0 + 2 ( sin x (d/dx) cos x + cos x(d/dx) sin x) = 2 {sin x (- sin x) + cos x (cos x)} ⇒dy/dx = 2(cos² x - sin² x) = 2 cos 2Read more

    Choice (b) is correct.
    Let y = (sin x + cos x)² = sin² x + cos² x + 2 sin x cos x = 1 + 2 sin x cos x
    dy/dx = d/dx (1 +2sin x cos x) = d/dx (1) + 2 d/dx (sin x cos x)
    ⇒ dy/dx = 0 + 2 ( sin x (d/dx) cos x + cos x(d/dx) sin x) = 2 {sin x (- sin x) + cos x (cos x)}
    ⇒dy/dx = 2(cos² x – sin² x) = 2 cos 2x
    This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-12

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  4. Choice (c) is correct. y = sin a cos x ⇒dy/dx = d/dx (sin a cos x) = sin a (d/dx)(cos x) = sin a (- sin x) = - sin a sin x  This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding. For more please visit hereRead more

    Choice (c) is correct.
    y = sin a cos x ⇒dy/dx = d/dx (sin a cos x) = sin a (d/dx)(cos x) = sin a (- sin x) = – sin a sin x 
    This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-12

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  5. Choice (a) is correct.  Comparison of co-efficients of variation determines the variability of two distributions (series).  This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding. For more please visit here: https://wwRead more

    Choice (a) is correct. 
    Comparison of co-efficients of variation determines the variability of two distributions (series). 
    This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13

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