The value of 4(sin430° + cos430°) - 3(sin245° - 2cos245°) is :
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Correct answer: B
Explanation
The correct answer is option 2 i.e. 4.
Concept used :
Trigonometric ratios
Calculations :
⇒ 4[(1/16) + (9/16)] - 3[(1/2) - 1]
⇒ 4[(10/16)] - 3(-1/2)
⇒ 5/2 + 3/2
⇒ 8/2 = 4