Question

plz answer this .. question ​

Answer 1

Answer:

Step-by-step explanation:

LHS = ( 1 + sin∅ + cos∅)²

use formula ,

( a + b + c)² = a² + b² + c² + 2( ab + bc + ca)

= 1 + sin²∅ + cos²∅ + 2( sin∅ × 1 + sin∅× cos∅ + cos∅ × 1 )

we know ,

sin²∅ + cos²∅= 1

so,

= 1 + 1 + 2sin∅ + 2cos∅ + 2sin∅.cos∅

= 2 + 2sin∅ + 2cos∅ ( 1 + sin∅)

= 2( 1 + sin∅) + 2cos∅( 1 + sin∅)

= 2( 1 + sin∅) ( 1 + cos∅) = RHS

you took some mistake in your question.

question is ,

proved that

( 1 + sin∅ + cos∅)² = 2( 1 + sin∅ )( 1 + cos∅)

Mark as brainliest please

Answer 2

The question is wrong

Corrected question

Prove that

(1+Sintheta + costheta)^2

=2(1+Costheta)(1+Sintheta)

Plz refer to attachment for answer.

thanks