Question

Prove that : tan²30 + cos60 - sin²45=⅓​

Answer 1

Step-by-step explanation:

Given that:-

LHS:-

tan²30 + cos60 - sin²45

=>(1/√3)² + (1/2) - (1/√2)²

=>(1/3) + (1/2) - (1/2)

=>(1/3)+(0)

=>1/3

=>RHS

LHS=RHS

Hence, proved