Math, asked by raziahmadmjg, 11 months ago

Answer please question no 42 with explanation.

Attachments:

Answers

Answered by danishjibran

Answer:

Step-by-step explanation:

Attachments:

raziahmadmjg: thanks

raziahmadmjg: a lot

raziahmadmjg: your class

raziahmadmjg: please

raziahmadmjg: bro

danishjibran: No problem bro :)

danishjibran: class?

raziahmadmjg: class

raziahmadmjg: you are studying in which class

danishjibran: I’m a lecturer bro... I just come here for giving some easy solutions to everyone :)

Answered by siddhartharao77

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!

Previous Question

Next Question