Answer please question no 42 with explanation.
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2
Answer:
Step-by-step explanation:
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raziahmadmjg:
thanks
a lot
your class
please
bro
No problem bro :)
class?
class
you are studying in which class
I’m a lecturer bro... I just come here for giving some easy solutions to everyone :)
Answered by
3
Answer:
Option(D)
Step-by-step explanation:
Given Equation is sinB + cosB = √5
On Squaring both sides, we get
⇒ (sin B + cos B)² = (√5)²
⇒ sin² B + cos²B + 2 sinB cosB = 5
⇒ 1 + 2 sinB cosB = 5
⇒ 2 sinB cosB = 4
⇒ sin 2B = 4
On Squaring both sides, we get
⇒ sin² 2B = 16
Hope it helps!
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