Question

sin? 35° +sina 550
cos2 40°+cos2 50°​

Answer 1

Step-by-step explanation:

We need to convert the numerator and denominator in the first part to sin and cos respectively

so that we can make the angles same and apply the formulas as per the pic you will find the first part reduce to 1 and second to 4/7

by applying formulas

Please check complete solution in the solution pic attached

Thank you