Q. 12 A13.8( 5 Votes )

# The value of (sin

Answer :

⇒ Option B is correct as it satisfy the value

Given, sin43°cos47° + cos43°sin47°

Need to find the value

⇒ sin43°cos(90 - 43)° + cos43°sin(90 - 43)°

⇒ sin43°sin43° + cos43°cos43°

⇒ sin^{2}43° + cos^{2}43°

= 1

[Since, sin^{2}θ + cos^{2}θ = 1]

⇒ Option A is incorrect because by solving the equation we get the value as 1

⇒ Option C is incorrect because by solving the equation we get the value as 1

⇒ Option D is incorrect because by solving the equation we get the value as 1

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