Question

Sen (A+B-C) = 1/2
Cas (B+C-A) = 1 / 2
​

Answer 1

Answer:

bccndnxnxnxnxnznxnxnxnnxnxbxbcbnxjdjtf

Answer 2

Given :-

• Quadratic polynomial p(x) .
• p(x) = kx² - 2x + k
• 2 is a zero of the given polynomial.

To Find :-

• Value of K

Solution :-

$\qquad$☀️We know that , if x = a is a zero of a polynomial p(x) , then p(a) = 0 .It’s given, x = 2 is a zero of the given quadratic polynomial.

$\qquad\small\underline{\pmb{\sf \:According \: to \: the \: question :-}}$

$\qquad\leadsto\quad \pmb {\mathfrak{ p(2) = 0 }}$

$\qquad\leadsto\quad \pmb {\mathfrak{ k \times 2² - 2\times 2 + k = 0 }}$

$\qquad\leadsto\quad \pmb {\mathfrak{ 4k - 4 + k = 0 }}$

$\qquad\leadsto\quad \pmb {\mathfrak{ 5k - 4 = 0 }}$

$\qquad\leadsto\quad \pmb {\mathfrak{5k = 4 }}$

$\qquad\leadsto\quad \pmb {\mathfrak{ k = \dfrac{4}{5} }}$

$\therefore\:\underline{\textsf{Value of k is \textbf{ 4/5 }}}.$