Question

Hy GM...

B 6) 2 Example 25 : Factorise : er Solution : Here, we have &r + y + 272 - 18vyz - (2x + y + 32)[(2x) + y + (32) - (2x)) - 0)(32) - (2x)(32) - (2x) + y + (32)" - 3(26)0)(32) 9. Ve 10. - (2r + y + 32) (4.rº + y + 92 - 2xy - 3yz - 6x2) EXERCISE 4.5 1. Use suitable identities to find the following products: ((r + 4) (r +10) (in) (3x + 4) (3x - 5) 17 () (+8)(x - 10) 3 (v) (3 - 2x) (3 + 2x) 2. (iv) 0- + ) - Evaluate the following products without multiplying directly (iii) 10496 () 103 107 3. Factorise the following using appropriate identities: (1) 9r2 + 6ry + y (ii) 4-4y+1 (i) - 100 (ii) 95 96इक्वलिटी पिक लेट द फॉलोइंग प्रोडक्ट्स विदाउट​

Answer 1

Answer:

The function of epiglottis is to cover the mouth of trachea (or wind pipe) when we swallow food so that the food may not enter the trachea (or wind pipe)

Explanation:

The function of epiglottis is to cover the mouth of trachea (or wind pipe) when we swallow food so that the food may not enter the trachea (or wind pipe).

Answer 2

Answer:

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Explanation:

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