Question

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√2 + 1 and √2 + 1 cancel krna h... ya phir... (a-b) (a+b) wali identity use krke simplify krna h...
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Answer 1

Answer:

theta = 24.20

Step-by-step explanation:

let's say that (theta) is a since there isnt that sign.

sin a = $\frac{( \sqrt{2} - 1 ) ( \sqrt{2} + 1 ) }{(\sqrt{2} + 1 )}$

[cancel $(\sqrt{2} + 1)$ from both numerator and denominator]

sin a = $(\sqrt{2} + 1)$

sin a = 0.41

     a = $sin^{-1}$ 0.41

     a = 24.20

Thus, changing again to theta ; theta = 24.20

Hope it helps!