Question

if p=√3-√2÷√3+and √3+√2÷√3-√2 find p^2+q^2

Answer 1

$\large{ \textbf{ Hello Mate! }}$

Refer to attctchment please.

Here,

${p}^{2} + {q}^{2} = {(p + q)}^{2} - 2pq \\ = {p}^{2} + {q}^{2} + 2pq - 2pq \\ {p}^{2} + {q}^{2} = {p}^{2} + {q}^{2}$

LHS = RHS

Concept :Rationalization. Reverse the signs in dinominator and conjucate should have same numbers.

$\boxed{ \textsf{ Required\:answer\:is\:98 }}$

Have great future ahead!

Answer 2

here is your answer OK

I take pic in answer and I write answer OK

Soln: Here, just we have to substitute the values of 'a' & 'b'. That's it! Come, let us solve.

= a²+b²

= [(√3+√2)/(√3-√2)]² + [(√3-√2)/(√3+√2)]²

= (√3+√2)²/(√3-√2)² + (√3-√2)²/(√3+√2)² [b/z, (a/b)² = a²/b²]

= [(√3)²+2(√3)(√2)+(√2)²]/[(√3)²-2(√3)(√2)+(√2)²] + [(√3)²-2(√3)(√2)+(√2)²]/[(√3)²+2(√3)(√2)+(√2)²] [b/z, (a+b)²=(a²+2ab+b²) & (a-b)²=(a²-2ab+b²)]

= (3+2√6+2)/(3–2√6+2)+(3–2√6+2)/(3+2√6+2)

= (5+2√6)/(5–2√6)+(5–2√6)/(5+2√6)

Now, take LCM,

= [(5+2√6)(5+2√6)+(5–2√6)(5–2√6)]/(5–2√6)(5+2√6)

= [(5+2√6)²+(5–2√6)²]/(5)²-(2√6)²

= {[(5)²+2(5)(2√6)+(2√6)²]+[(5)²-2(5)(2√6)+(2√6)²]}/25–4(√6)(√6)

= [(25+20√6+24)+(25–20√6+24)]/25–24

= (49+20√6+49–20√6)/ 1

= 98/1

= 98

Hence, a²+b²=98

Therefore, 98 is the answer for your question. Thank you.