Find the H. C.F of the following expressions. 1. x⁴ + 4y⁴ and 2x³y + 4xy³ + 4x²y²
2. a³ - 1 and a⁴ + a² + 1

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Step-by-step explanation:

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answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.