Question

find the value of x in:-
sin² x + sin²30º = 1​

Answer 1

$sin {}^{2} x + sin ^{2} 30 \: ° \: = 1$

$sin ^{2} x \: = 1 - sin \: ^{2} 30 \: °$

$cos ^{2} \: 30 \: degree \: = \frac{3}{4}$

$sin \: x \: = + \sqrt{ \frac{3}{2} }$

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Answer 2

Answer:

x=60

Step-by-step explanation:

sin square x+ sin square 30 degree =1

sin square x+ sin square 1/2 square =1

sin square 1/4 =1

sin square = 1-1/4

sin square =4-1/4

sin square = 3/4

sin square x= root 3/4

x = 60 (from the table of t-ratio)